we want to welcome our viewers in the united states and around the world. i m wolf blitzer. you re in the situation room. breaking news tonight, the united states says it s ready to do whatever it takes to defend against the grave threat from north korea s rapidly expanding nuclear program. north korea claims it has the abilities to produce weapons with a higher strike power that it could use against the united states and its allies. hillary clinton says the world must stop north korea s dangerous game. she pet with a group of experts a while ago. clinton says the nuclear threats are a reminder that americans must choose a commander in chief that can respond with steadiness and strength. donald trump is responding by trying to cast blame on clinton. he s calling the nuclear test one more massive failure from a failed secretary of state. also tonight, russia holds massive war games in crimea. experts say putin is sending a message to the u.s. and the world that he s in con
interfering in the u.s. presidential race. the trump campaign says it was blind sided, never knew the interview would air on russian tv. will trump stand by his parade praise of putin. the fbi and the justice department now think there is enough evidence to name russia responsible for the cyber attacks on the united states. why are they reluctant to call out the kremlin? this is cnn breaking news. we re following the breaking news, the nuclear threat from north korea surging with the testing of they re largest to date. it is said to be double the strength of the last bomb tested by north korea. they say it indicates that he is pushing the nuclear program very rapidly and the capability is troubling. also breaking this hour telling nn that officials believe there is enough evidence to publicly blame russia for cyber attacks on u.s. troops including the democratic party, but they re also saying that some officials are reluctant to calling out russia we re covering all of