Anonymous,
I beg to differ with you. The RSA 64-bit RC5 encryption algorithm was cracked on July 14th, 2002.
While it took nearly fours years and the combined computing power of the equivalent of 46,000 2GHZ AMD Athlons, the fact is, it was done.
And who knows how many algorithms have been cracked by the super-computers in the basement of the NSA building? Do you think they would actually tells us?
Your cautions on the usage of PGP should be heeded by all. I for one would not use 64-bit encryption, or RSA for that matter. I prefer 128-bit Blowfish encryption.