lee loughner opened fire killing six and wounding 13 others. loughner is sentenced to life in prison without parole. >>> the former head of the transportation security agency, kip hollyg he supports a new policy allowing small knives on planes but says it actually doesn't go far enough. he says, quote, they ought to let everything on that is sharp and pointy. battle axes, machetes, bring anything that you want that is pointy and sharp because while you may be able to commit an act of violence, you will not be able to take over the plane. it's as simple as that. he insists the search for knives slows down the search for objects that can cause major harm like explosives. >> yeah, people are mad about that. i feel like the machete thing is a good line. >> battle axes also. >> even small knives. you have to take off your shoes -- >> why don't they change that rule? >> i don't know. >> there's no explanation. >> no, none. >> sometimes there's just no sfla sp explanation of the news. why is that, john berman. >> i cannot answer all your questions for you. sometimes there is just no answer to what happens in the world. i'm sorry, richard. >> we're a really useful panel toda