The chancellor will issue separation warning to institutions that flout the rules over high street and investment banking divisions. George Osborne will threaten to break up banks if they flout new rules intended to prevent another taxpayer bailout of the financial system. The chancellor's pledge to force through changes to the industry came amid continued upheaval at Barclays , which is losing two more top executives after being hit by a £290m fine for rigging Libor, the rate at which banks lend to each other. Royal Bank of Scotland also faces a £500m fine for manipulating the key interest rate. Osborne ... (full story)