U.S. Secretary of State John Kerry, center, points to the bullet hole in a tree at barricades covered with flowers, placed to mark the of death protesters during recent clashes with riot police in Kiev, Ukraine, Tuesday, March, 4, 2014. Secretary of State John Kerry flew to Kiev Tuesday to show U.S. support for the fledgling Ukraine government, and the Obama administration announced with his arrival a $1 billion energy subsidy package.. (AP Photo/Efrem Lukatsky)