its half of the arms race. so if we can't get putin to stop, then i think we probably should and will increase western military support for the ukrainian government. i think the more important thing is to get putin to stop at the risk of having more sanctions placed on his country if he doesn't and presenting a united front with western europe to that effect. >> all right. we'll leave it there. andrea mitchell and michael o'hanlan, thank you. ahead, we're keeping an eye on our other major story of the day, gaza, where just moments ago we saw rockets being fired. the israeli prime minister is already talking about expanding the ground operation. we'll talk to the chair of the senate foreign relations committee about that and how the u.s. is dealing with ukraine and russia over the downed malaysia airlines plane. first, the search for answers and the difficulty of conducting a plane crash investigation in a war zone. >> i'm feeling physically sick.