The report said they may need capital controls to navigate the storm - or technically to overcome the "Impossible Trinity" of monetary autonomy, a stable exchange rate and free flows of funds. William Browder from Hermitage says that is exactly where the crisis is leading, and it will be sobering for investors to learn that their money is locked up - already the case in Cyprus, and starting in Egypt. The chain-reaction becomes self-fulfilling. "People will start asking themselves which country is next," he said.