From NPR News in Washington, I'm Jack Speer.In Egypt, at least 17 people are dead; scores of others were injured.NPR's Leila Fadel reports6 were killed in four blasts in the capital targeting security forcesbut more dying clashes are reigning protesters and police.Egypt's interim president Adly Mansour called the bombings cowardly actsalso vowed to bring those involved in the attack to justice.He said in a statement that Egypt had defeated terrorism in 1990s, and would do so again.Immediately following the bombings, more than 200 Muslin Brotherhood supporters were arrested.And despite the fact that an extremist militant group called Ansar Beit al-Maqdis claimed responsibility,most people blamed the ousted Brotherhood for the attack.The Brotherhood condemned the bombings in a statement,and said it was being unfairly accused of violence.Leila Fadel, NPR News, Cairo.A mediator at the Syrian peace talk in Geneva saysa Syrian government delegation and a western backed opposition would meet tomorrow in the same room.The announcement came on the day, the two sides were set to meet but failed to do so,but a continuing disagreement over the agenda for the talks.Respective sides have not held face-to-face talks since the start of the country's now three-year-old civil war.The United States will have security personnel on the ground in Russia to protect athletes during the Olympic Games.As NPR's Tamara Keith explainsObama administration officials say they're working with Russian government.Senior administration officials sayUS security personnel have been coordinating with the Russian government for months if not years in advance of the Sochi games.