A day after Johnny Knoxville was stopped at LAX for having a fake grenade in his carry-on bag, the Jackass star is speaking out about the incident.Knoxville took to his blog on the official Jackass website, where he wrote:"A few days ago, I was filming some commericals for this show we are doing for MTV called Nitro Circus, so I took a bunch of silly props in my carry-on bag to the shoot. Well, when the shoot was over, the wardrobe girl packed my luggage so I could go home and unbeknownst to me, she packed a FAKE hand grenade (a prop grenade that I'd taken to the shoot) in the front zipper of my ... Read More >>