Telia v ATT?

Can anyone shed any light on the difficulties last night between Telia and {AT&T, ATDN, others}? For a while it seemed like it was AT&T specific. The problem started about 9:30pm Eastern and didn't get resolved until about 12:30am; during this time routes were being seen but traffic wasn't passing over interfaces between Teliasonera and AT&T at a minimum, and probably several other providers as well. Feel free to respond privately. Tim