The U.S. and Europe are focused on diplomacy and sanctions to stem violence in Syria -- and perhaps force the current regime from power. One problem is Russia's alleged supply of arms to the government there. But Western diplomats have discovered a vulnerability: every weapons-carrying ship has to carry insurance.

The U.S., Britain and other nations will expel Syrian diplomats after a weekend massacre in the country, but sanctions so far haven’t been effective.

The economic and social unrest in Syria is making it difficult for foreign businesses, like KFC, Cinnabon and United Colors of Benetton, to expand there.

German Chancellor Angela Merkel said she'll support more sanctions on Syria. But do sanctions even work? Joshua Landis, an expert on Syria and a professor at the University of Oklahoma, explains.