missiles in europe. now, russia and the u.s. were until very recently in a treaty that banned both sides from having them, and the u.s. said it is willing to revive some sort of deal. the third is military exercises. the u.s. said if russia agrees to do the same, it would be willing to freeze sending ground forces or bombers on maneuver near each other's territory. of course, the white house reiterated today the number of u.s. troops in europe is not up for negotiation. irika. >> sargent: christina ruffini, thank you. the year has gotten off to a very bad start in khazakstan. it began with a sudden and steep increase in the cost of fuel, sparking deadly protests and an official "shoot to kill" order. cbs' imtiaz tyab has the details. >> reporter: this is a nation on the brink. what started earlier this week as a peaceful protest against a sudden hike in fuel prices rapidly escalated into a full- blown uprising.