on that this morning. >> if vladimir putin and russia takes aggressive action, it will be met with a cost that will be severe. >> but the damage may be done. nbc's chief foreign correspondent richard engel is in kiev. he has more on how the comments are being received in that part of the world. >> reporter: the ukrainian government is clearly upset and rattled by president biden's comments and you can see it in their denials. you can see it in their emphatic insistence that nothing is wrong. you don't insist that nothing is wrong unless there is something wrong. the ukrainian president came out and said that he sees in differences between the u.s. and ukraine and that president biden's speech didn't change u.s. policy. the ukrainian foreign minister said that it's not important to look at the specific language that president biden was using