David Kaye wrote:

I've never met Harold Camping, though in the past I knew a couple people who
did radio production there. From what I remember them saying, I'd surmise
that he'll just do business as usual and talk about a miscalculation or
perhaps that God decided not to rush to judgment or something. There aren't
many ways to save face on something like this, but most people have already
dismissed him a a kook, so he doesn't have to appease them anyway.

The Jehovah's Witnesses predicted the apocalypse in 1928, and when it did not
happen, they revised it to some time in the 40s. It didn't happen then
either. After the second false alarm, they adopted the (reasonable) doctrine
that nobody could know when it was going to happen. They are still around
today, which is a sign that bad predictions like this won't completely kill
your credibility among deluded followers.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."