what does jeremy lin, daniel dae kim and john cho have that we don't? this asian tycoon says his foolproof dating boot camp can take them from zero to hero. we tag along on their dates to find out. >>> and overexposed? beyonce's doing it. kim kardashian's slamming it. and the tsa is in trouble for it. why all the controversy about nursing in public? >> announcer: from the global resources of abc news, with terry moran, cynthia mcfadden, and bill weir in new york city, this is "nightline," march 2nd, 2012. >>> good evening. i'm cynthia mcfadden. tonight, breaking news as dozens of tornadoes deliver a body blow to the nation's midsection turning towns into rubble and leaving 26 dead across 6 states. the path of destruction is historic in its width, with storms reported as far south as georgia and as far north as illinois. abc's ginger zee has been chasing the storms all day and reports now from henryville, indiana. ginger? >> reporter: cynthia, this is one of the most incredible steens i've ever come upon when storm chasing and one of the most incredible

[applause] >> we had that john cho on the show.nd he was talking about how growing up as a young asia boy, how exciting for his family anytime they would see an asian on television or in films. do you think it's better in the entertainment industry to be an asian actor? >> we're getting there. at it progressed a little more than it was before, and you see a lot more nonstereotypical roles and that's where it is starting to grow in that end. but i still think it's in the early stages as well. so a lot more to do, but it's grown. >> it's growing. it's progressing. now, you both have san francisco roots. you spent time at sf state? >> yeah. [applause] >> a little bit. and then i made the trek to l.a. but i lived here for a little while. moved in to san francisco and lived there back and forth and spent time here. >> you were born here. >> i was born here. [applause] >> i spent the whole first half of my life here. >> where did you live? >> on the avenue, 40th and ortega. >> somebody watching there -- >> i slept in bb's sunroom. >> yea

cho is in seoul with the latest. good morning, joohee. >> reporter: good morning tanya and john.ajor speech of his trip, president obama took direct aim at the leaders of north korea. >> but by now it should be clear. your provocations and pursuit of nuclear weapons have not achieved the security you seek. they have undermined it. instead of the dignity you desire, you're more isolated. instead of earning the respect of the world, you've been met with strong sanctions and condemnation. you can continue down the road that you are on, but we know where that leads. >> reporter: and president obama said the same goes for iran. the world is ready to talk to both countries, and he will push russia and china to add pressure for a diplomatic solution. the president took his first trip to the demilitarized zone on the korean border sunday to look firsthand into the north which he said was like witnessing a time warp of despair. >> north korea's isolation damage further its relations with its neighbors and seriously undermine the prospects of future negotiations. >> reporter: and the world