CNN The Lead With Jake Tapper March 18, 2015 20:28:00
Welcome back to "the lead." i'm brianna keilar filling in for jake tapper. in other world news deadly threats made against america's top diplomat in japan, caroline kennedy. the threats were reportedly phoned in to the u.s. embassy in tokyo by an english-speaking man last month. this of course comes on the heels of a knife attack just two weeks ago on the u.s. ambassador to south korea, mark lippert. the white house today responding to these threats. jim acosta has those details. >> reporter: the state department says it's taking seriously news reports out of tokyo that caroline kennedy, the d...