AT&T US Network Slowdown?

Dear Nanogers, Is anyone aware of a "slowdown" issue throughout the US AT&T network since 8/18 at around 4pm which is causing a lot of internet circuits (including DSL) to be inaccessible and/or appear down from the outside world? AT&T says this has been escalated to "Level 4" with no ETA and affecting the whole country. I am seeing this problem in the San Francisco area. Just wondering if anyone else is experiencing anything that would confirm AT&T's claim, and fishing for more info about the possible cause and ETA. Thanks! Paul ====================================== Paul Jasa Network Engineer ======================================