hostage negotiator jim cavanagh is back with us next. ♪ good time never seemed so good ♪ what do you won't take long, will it? nah. okay. this, won't take long will it? no, not at all. how many of these can we do on our budget? more than you think. didn't take very long, did it? this spring, dig in and save. that's nice. post it. already did. more saving. more doing. that's the power of the home depot. dig in and save with vigoro one-quart annuals, four for just ten bucks. >>> the interrogation of dzhokhar tsarnaev is underway but not necessarily as planned. right now the surviving marathon bombing suspect lies underguard at a boston hospital. he is answering questions in writing because of a throat wound. possibly from a suicide attempt friday night, it tough for him to talk. there is no word on what information he may be giving investigators about the plot or the attack. in the past few days, interesting details have emerged about how dzhokhar spend his day on campus at the university of massachusetts dartmouth right after the bombing. going to class, working out at the gym even. >

. >> jim cavanagh, thank you so much for that. well, we could find out definitively today if letters sent to president obama and senator roger wicker contain the poison ricin. mississippi police have arrested 45-year-old paul kevin curtis at his home. the fbi says curtis sent three letters, all of which preliminarily tested positive for ricin, and included a final line that red, "i am kc, and i approve this message." 'one size fits all'. it doesn't. that's crazy. we're all totally different. ishares core. etf building blocks for your personalized portfolio. find out why 9 out of 10 large professional investors choose ishares for their etfs. ishares by blackrock. call 1-800-ishares for a prospectus, which includes investment objectives, risks, charges and expenses. read and consider it carefully before investing. risk includes possible loss of principal. accomplishing even little things can become major victories. i'm phil mickelson, pro golfer. when i was diagnosed with psoriatic arthritis, my rheumatologist prescribed enbrel for