I'll be here all day (with a few breaks). As usual, there are many possible topics and I'll be guided by whatever you're concerned with or interested in. Please remember that I can't provide legal advice on specific cases for obvious liability reasons since I won't have access to all the facts. Please stick to a factual discussion in your questions and comments and I'll do the same. Thank you!
Previous threads we've done: https://news.ycombinator.com/submitted?id=proberts.
Edit: Good evening. I'm signing off now. I tried to get through most of the questions but I know that I haven't answered them all and for that, I am very sorry. Please feel free to email me directly (email in profile) if you have any questions. Thank you for participating in this AMA. The questions and comments were great and as always, I learned a lot myself.
Question: What I'm not clear on is whether the business-but-not-work restriction... 1. merely means that the purpose of your visit has to be business-but-not-work, or 2. requires that the visitor refrain from all "work" activities while in the US, even if they weren't the reason for visiting and would have happened anyway.
Concretely: suppose I am a programmer who works remotely from Europe for a US company. I visit the US to meet my colleagues face to face and attend a trade show with them (business, not work), but these activities don't take up 100% of my time. Rather than sit around idly during the downtime between "business" activities, I do some of my ordinary programming work, of the sort I would do back in Europe. Have I broken the law?