If so you had better be careful what you say about them. First AT&T fights against Net Neutrality, and now this?
http://home.bellsouth.net/csbellsouth/s/s.dll?spage=cg/legal/att.htm&leg=tos5.1 Suspension/Termination. Your Service may be suspended or terminated if......
...In addition,
AT&T may immediately terminate or suspend all or a portion of your Service, any Member ID, electronic mail address, IP address, Universal Resource Locator or domain name used by you, without notice, for conduct that AT&T believes ........ (c)
tends to damage the name or reputation of AT&T, or its parents, affiliates and subsidiaries. Termination or suspension by AT&T of Service also constitutes termination or suspension (as applicable) of your license to use any Software.