AT&T Blocking ICMP (was RE: AT&T US Network Slowdown?)

A call to AT&T Worldnet confirms that AT&T Worldnet service is blocking ICMP in order to deal with an undefined emergency. Nothing posted on their site, nor any other info is available. If anyone has info related to this "icmp outage", please advise. Thanks!

The latest DCOM worm seems to have started it's burn near ATT's San Jose presence.
They're probably being pinged to death, or trying to contain the damage...