back. reporter: just over the border, more than 100,000 russian troops are practicing, ready to invade ukraine. this weekend president joe biden huddling with security advisers at camp david after top russian and american diplomats met in geneva friday scrambling to stop a war. u.s. secretary of state antony blinken held hasty negotiations with his russian counterpart. if russia wants to begin to convince the world that it has no aggressive intent towards ukraine, a very good place to start would be by deescalating. foreign minister sergei, meant to defend against russian expansion. the russians say europe and the u.s. are the aggressors. our concerns are not about imaginary, but about real threats and facts that nobody s really hiding. stuffing ukraine with weapons, sending hundreds of western military instructors said
weapons, sending hundreds of western military instructors, he said. both sides agreed to keep talking even as military equipment keeps flowing in. russia sending fighter jets to belarus near ukraine s capital kiev. a rivalry reminiscent of the cold war that could soon turn very hot. so yeah, you mentioned just a moment ago about the consequences that the u.s. has laid out if russia were to invade. but the problem is, you know, the white house is really in a bind because they re trying to keep russia at bay while at the same time managing expectations for the ukrainians and for other european countries. the white house has already tied their hands when they announced that they would not be putting u.s. boots on the ground to defend ukraine. lindsay? all right, matt bradley, thank you so much. still ahead, outrage over this photo of a teacher taping a mask to a student at a philadelphia suburb.