If the U.S. and Europe truly want to support the causes of freedom and global integration that hundreds of thousands of protesters are defending in Kiev, there's one simple thing they could do: Abolish tourist visa requirements for Ukrainians. And while they're at it, for Turks, Russians and everyone else in the world.
Hang on, you might ask: What would happen to migration flows if visas were abolished? Wouldn't wealthier countries be inundated by people trying to become permanent immigrants? Nobody knows for sure, but the available evidence suggests that nothing much would change.