That is hilarious. If BAC fails, they won't be able cover more than the FDIC minimum. Their capital reserves are non-existent as it is.
Kind of like the $19.99 stuff you see on television being offered with a "lifetime guarantee" while the fly-by-night operation that sells it closes up shop a month later.
BAC is on the fast track to insolvency as it is. I don't know how, or on who's authority, they would be able to offer such a "guarantee". It sounds like something the US Attorney should go after them for. Or at least the FTC.