dan aykroyd, sum it up. your opinion is, succinctly, what?e, science should accept that they're here and look where they come from where they're coming from. they have abducted people, but i say, go, seti, go, because maybe the nice ones will call. >> larry: what do you believe, dr. kaku? what do you know know? >> i believe "a" they're out there but "b" they're malevolent. the next time you hear "abducted," please, swipe a paperweight, swipe a pen. we have some alien dna, alien technology. that will settle the question right there. >> larry: seth, what do you believe? believe believe? >> well, i believe that we ought to keep looking. the big question is, is earth a miracle or is life just a cosmic infection? i think the latter's probably true, but let's go look and prove it one way or another. >> larry: david, what do you believe? i'll close with dan in a minute. david, what do you believe? >> i believe that 15 years ago, we knew of no planets outside our solar system. now we know of 500. we are lea and it's not time to be yelling yo-hoo into

i do want to say something to dan aykroyd who thinks they're here.s does he go down to the l.a. airport and sit in the plane and the captain comes on and series we're going to delay our departure a little bit because there are unidentified flying objects in the area and the faa wants us to stray on the ground. >> remember chicago, sir. >> it doesn't affect us at all. >> web chicago. what was that? was that a weather anomaly? something punched through the cloud. >> yes, it was a weather anomaly. >> i don't believe it was a weather anomaly. all right. i support seti. go to it i just don't think they're calling like they took barney and betty. >> larry: david, has nasa discovered anything? >> well, the -- we could go on for hours about paranoid theories like ufos. i personally find the ufo aliens unlikely because the number of cameras is doubling every single year, and the grays that they're talking about are such tedious boring versions of aliens. i support seth in that i have supported seti all my life. but i think it's been shown recently that seti n