all x86_64 mirrors corrupted tonight?

[Tom Horsley <tom horsley att net>]

I tried running an update, and I get a large number
of these, followed by a message that there are no
more mirrors to try:

20:07:54 : Trying other mirror.
20:07:57 : Failure getting http://mirror.stanford.edu/fedora/linux/updates/7/x86_64/repodata/comps-f7.xml: 
20:07:57 :   --> [Errno -1] Metadata file does not match checksum

The i386 mirrors don't seem to have the same problem.