objecting to this so-called bloody nose strategy. a bloody nose strategy would be a preemptive, preventativ e strike against north korea with huge clout against north korea, the president and others, and the president has no authority to launch that preventative war strike against them without congress. >> many have disagreed with that legal interpretation. they say the president, if he feels the u.s. is endangered, he has authority to launch a preemptive strike. your response? >> wolf, there are a whole range of different possibilities in scenarios here, from striking a terrorist target to essentially launching