Ukrainian president Viktor Yanukovich fled Kiev yesterday — and apparently so did much of his security force and perhaps even his ministers. The police in Kyiv have switched sides, now claiming that they serve the people and not the Yanukovich government. Protesters who spent weeks bottled up in Independence Square have now taken control of the capital of Ukraine, while the Ukrainian parliament struggles to keep the country from splitting in two: Protesters took control of Ukraine’s capital on Saturday, seizing the president’s office as parliament sought to oust him and form a new government. An aide to President Viktor...