and now they do fight terrorism. i said it was obsolete. it's no longer obsolete. >> now to be clear, the president's allegation that nato just recently began fighting terror is not accurate. it has played a central role in afghanistan more than a decade. it came after the u.s. invoked nato's article 5 calling for collective defense after 9/11 attacks. after skewering china for months, now the president has kind words for china's president xi. >> and promised to label china as a currency manipulator, let's bring in cnn's matt rivers live from beijing. are we witnessing a warming