Got it!

I spent about 6 hours today at the American embassy. Mostly waiting to be called for fingerprints and then for the interview. I got a consular officer that didn't seem to nice. She denied the applications of the 4 people in front of me. I wasn't worried, though. I had an invitation from Intel. It all worked out well. I got the visa.

Now it is certain: I'll go to Portland on May 3 and fly to Boston on the 9th. I'll be there until the 17!