diff --git a/lib/src/commands.rs b/lib/src/commands.rs
index 3d853fa..732235c 100644
--- a/lib/src/commands.rs
+++ b/lib/src/commands.rs
@@ -475,7 +475,7 @@ impl Command for SendCommand {
         h.push("OR");
         h.push("send '[{'address': <address>, 'amount': <amount in puposhis>, 'memo': <optional memo>}, ...]'");
         h.push("");
-        h.push("NOTE: The fee required to send this transaction (currently HUSH 0.0001) is additionally detected from your balance.");
+        h.push("NOTE: The fee required to send this transaction (currently HUSH 0.0001) is additionally deducted from your balance.");
         h.push("Example:");
         h.push("send ztestsapling1x65nq4dgp0qfywgxcwk9n0fvm4fysmapgr2q00p85ju252h6l7mmxu2jg9cqqhtvzd69jwhgv8d 200000 \"Hello from the command line\"");
         h.push("");
@@ -548,17 +548,12 @@ impl Command for SendCommand {
             return self.help()
         };
 
-        match lightclient.do_sync(true) {
-            Ok(_) => {
-                // Convert to the right format. String -> &str.
-                let tos = send_args.iter().map(|(a, v, m)| (a.as_str(), *v, m.clone()) ).collect::<Vec<_>>();
-                match lightclient.do_send(tos) {
-                    Ok(txid) => { object!{ "txid" => txid } },
-                    Err(e)   => { object!{ "error" => e } }
-                }.pretty(2)
-            },
-            Err(e) => e
-        }
+    // Convert to the right format. String -> &str.
+        let tos = send_args.iter().map(|(a, v, m)| (a.as_str(), *v, m.clone()) ).collect::<Vec<_>>();
+        match lightclient.do_send(tos) {
+        Ok(txid) => { object!{ "txid" => txid } },
+        Err(e)   => { object!{ "error" => e } }
+    }.pretty(2)
     }
 }
 
@@ -673,30 +668,12 @@ impl Command for ImportCommand {
         }
 
         let key = args[0];
-      
-
-        let rescan = if args.len() == 3 {
-            if args[2] == "norescan" || args[2] == "false" || args[2] == "no" { 
-                false 
-            } else {
-                return format!("Couldn't undestand the argument '{}'. Please pass 'norescan' to prevent rescanning the wallet", args[2]);
-            }
-        } else {
-            true
-        };
 
         let r = match lightclient.do_import_key(key.to_string(), 0) {
             Ok(r) => r.pretty(2),
             Err(e) => return format!("Error: {}", e),
         };
 
-        if rescan {
-            match lightclient.do_rescan() {
-                Ok(_) => {},
-                Err(e) => return format!("Error: Rescan failed: {}", e),
-            };
-        }
-
         return r;
     }
 }
@@ -719,21 +696,53 @@ impl Command for TImportCommand {
     }
 
     fn exec(&self, args: &[&str], lightclient: &LightClient) -> String {
-      
+        if args.len() < 1 || args.len() > 2 {
+            return format!("Insufficient arguments\n\n{}", self.help());
+        }
+
         let key = args[0];
 
-        let r = match lightclient.do_import_tk(key.to_string()){
+        let r = match lightclient.do_import_tk(key.to_string(), 0) {
             Ok(r) => r.pretty(2),
             Err(e) => return format!("Error: {}", e),
         };
 
-            match lightclient.do_rescan() {
-                Ok(_) => {},
-                Err(e) => return format!("Error: Rescan failed: {}", e),
-            };
+        return r;
+    }
+}
 
+struct ShieldCommand {}
+impl Command for ShieldCommand {
+    fn help(&self) -> String {
+        let mut h = vec![];
+        h.push("Shield all your transparent funds");
+        h.push("Usage:");
+        h.push("shield [optional address]");
+        h.push("");
+        h.push("NOTE: The fee required to send this transaction (currently HUSH 0.0001) is additionally deducted from your balance.");
+        h.push("Example:");
+        h.push("shield");
+        h.push("");
 
-        return r;
+        h.join("\n")
+    }
+
+    fn short_help(&self) -> String {
+        "Shield your transparent HUSH into a sapling address".to_string()
+    }
+
+    fn exec(&self, args: &[&str], lightclient: &LightClient) -> String {
+        // Parse the address or amount
+        let address = if args.len() > 0 {
+            Some(args[0].to_string())
+        } else {
+            None
+        };
+
+        match lightclient.do_shield(address) {
+            Ok(txid) => { object!{ "txid" => txid } },
+            Err(e)   => { object!{ "error" => e } }
+        }.pretty(2)
     }
 }
 
@@ -905,6 +914,7 @@ pub fn get_commands() -> Box<HashMap<String, Box<dyn Command>>> {
     map.insert("info".to_string(),              Box::new(InfoCommand{}));
     map.insert("coinsupply".to_string(),        Box::new(CoinsupplyCommand{}));
     map.insert("send".to_string(),              Box::new(SendCommand{}));
+    map.insert("shield".to_string(),            Box::new(ShieldCommand{}));
     map.insert("save".to_string(),              Box::new(SaveCommand{}));
     map.insert("quit".to_string(),              Box::new(QuitCommand{}));
     map.insert("list".to_string(),              Box::new(TransactionsCommand{}));
diff --git a/lib/src/lightclient.rs b/lib/src/lightclient.rs
index 38c48ea..fa181a1 100644
--- a/lib/src/lightclient.rs
+++ b/lib/src/lightclient.rs
@@ -1011,16 +1011,16 @@ impl LightClient {
     }
 
     /// Import a new private key
-    pub fn do_import_tk(&self, sk: String) -> Result<JsonValue, String> {
+    pub fn do_import_tk(&self, sk: String,  birthday: u64) -> Result<JsonValue, String> {
         if !self.wallet.read().unwrap().is_unlocked_for_spending() {
             error!("Wallet is locked");
             return Err("Wallet is locked".to_string());
         }
 
         let new_address = {
-            let  wallet = self.wallet.write().unwrap();
+            let mut  wallet = self.wallet.write().unwrap();
 
-            let addr = wallet.import_taddr(sk);
+            let addr = wallet.import_taddr(sk, birthday);
             if addr.starts_with("Error") {
                 let e = format!("Error creating new address{}", addr);
                     error!("{}", e);
@@ -1166,6 +1166,34 @@ impl LightClient {
         }
     }
 
+    pub fn do_shield(&self, address: Option<String>) -> Result<String, String> {
+        use zcash_primitives::transaction::components::amount::DEFAULT_FEE;
+        use std::convert::TryInto;
+
+        let fee = DEFAULT_FEE.try_into().unwrap();
+        let tbal = self.wallet.read().unwrap().tbalance(None);
+
+        // Make sure there is a balance, and it is greated than the amount
+        if tbal <= fee {
+            return Err(format!("Not enough transparent balance to shield. Have {} puposhis, need more than {} puposhis to cover tx fee", tbal, fee));
+        }
+
+        let addr = address.or(self.wallet.read().unwrap().get_all_zaddresses().get(0).map(|s| s.clone())).unwrap();
+
+        let result = {
+            let _lock = self.sync_lock.lock().unwrap();
+            self.wallet.read().unwrap().send_to_address(
+                u32::from_str_radix(&self.config.consensus_branch_id, 16).unwrap(), 
+                &self.sapling_spend, &self.sapling_output, 
+                true, 
+                vec![(&addr, tbal - fee, None)],
+                |txbytes| broadcast_raw_tx(&self.get_server_uri(),self.config.no_cert_verification, txbytes)
+            )
+        };
+
+        result.map(|(txid, _)| txid)
+    }
+
     fn do_sync_internal(&self, print_updates: bool, retry_count: u32) -> Result<JsonValue, String> {
         // We can only do one sync at a time because we sync blocks in serial order
         // If we allow multiple syncs, they'll all get jumbled up.
@@ -1477,6 +1505,7 @@ impl LightClient {
             self.wallet.write().unwrap().send_to_address(
                 u32::from_str_radix(&self.config.consensus_branch_id, 16).unwrap(), 
                 &self.sapling_spend, &self.sapling_output,
+                false,
                 addrs,
                 |txbytes| broadcast_raw_tx(&self.get_server_uri(), self.config.no_cert_verification, txbytes)
             )
diff --git a/lib/src/lightwallet.rs b/lib/src/lightwallet.rs
index 083f20e..9c66639 100644
--- a/lib/src/lightwallet.rs
+++ b/lib/src/lightwallet.rs
@@ -628,7 +628,7 @@ impl LightWallet {
         address
     }
 
-    pub fn import_taddr(&self, sk: String) -> String {
+    pub fn import_taddr(&mut self, sk: String,  birthday: u64) -> String {
         if !self.unlocked {
             return "Error: Can't add key while wallet is locked".to_string();
         }
@@ -657,6 +657,11 @@ impl LightWallet {
         //// Add to tkeys
         self.tkeys.write().unwrap().push(WalletTKey::import_hdkey(sk_raw , address.clone()));
 
+        // Adjust wallet birthday
+        if birthday < self.birthday {
+            self.birthday = if birthday < self.config.sapling_activation_height {self.config.sapling_activation_height} else {birthday};
+        }
+
         address
     }
 
@@ -1992,6 +1997,7 @@ impl LightWallet {
         consensus_branch_id: u32,
         spend_params: &[u8],
         output_params: &[u8],
+        transparent_only: bool,
         tos: Vec<(&str, u64, Option<String>)>,
         broadcast_fn: F
     ) -> Result<(String, Vec<u8>), String>