forced him to hand over power to his brother raul in 2006. prospects for peace is in syria is growing dimmer, as violence rage on. this video shows the government shelling of a neighborhood in eastern syria. but the main western backed opposition group is on the brink of collapse and may not attend peace talks scheduled to take place in switzerland later this month. well, the u.s. is helping to beef up security in russia ahead of the olympic games next month. the move comes after a series of troubling incidents not far from sochi where the olympics are going to be held. here's abc's brian ross. >> reporter: with american athletes in the final stages of preparation for next month's winter games, there was growing concerns by u.s. officials that terrorists will make good on their threats to attack the olympics in the russian city of sochi. >> i think all of the ingredients are there, quite honestly. >> reporter: the latest incident came a few hours drive from sochi.