participate in the war responsible? the countries who let german forces march throughout europe, does the world carry responsibility for the genocide? yes. yes, it does. when you have the ability to close the sky, yes, it s scary that a world war could start. it s scary. i understand that. and i cannot put pressure on these people because everyone is afraid of war. with me now is former u.s. am ambassador to russia michael mcfaul and an msnbc security analyst. clint, i want to start with you. the devil in uniform, vladimir putin. these reports of chemical weapons attacks and what appears to be an attempt to almost sort of draw a half moon around ukraine and push their territory, russian territory in