Option 1 is asking for serious trouble! Prison time even. Never lie to them.

Even if you just intend to visit and and up doing some work you'll get in deep trouble, but if you lie about it from the start it'll be much worse.

And they do sometimes check.

A tourist visa and a work visa are not interchangeable.

He was on a visa waiver - if he is British that allows him to do anything you can do on a B1 business visa. In fact the only reason you have to get a B1 visa is because you can't use the visa waiver if you are, say a convicted criminal!

You can work for your outside-the-US employer, you can collaborate with US customers, suppliers, partners, you can train them,you can sell, demonstrate and install products. About the only thing you can't do is work for a US company.

Picture if he was an engineer from Rolls Royce aero engines going to Boeing - everything that engineer might need to do you can do on a visa waiver.

Indeed, but if you're self-employed, then you should either say you're coming from (your own) Foo Corp. in Australia to have business meetings with Bar Corp (in US); or follow GP's advice and say you're on vacation.

Despite your visa waiver, you still have customs forms to fill out and they do ask whether or not you are on business or not. They're very clear that having a waiver, or even a visa, is not a guarantee of entry into the US and that ultimately it's up to the CBP agents.

This is good advice, but of course it's pretty absurd that anyone has to take these steps to avoid the overly invasive US government.

It is absurd, but I think it's also common sense. I think it's a good assumption that airport security is not going to be that technically knowledgeable.

I wouldn't touch the topic of Bitcoin with a 10 foot pole around strangers, let alone people with the authority to deport me. I still can't explain it to my friends in a way without making it sound suspicious.

This is pretty much true of clearing customs in any other country. The reason we hear so much about the US is because it's a really big country.

(As an American, I hate crossing the UK border just as much as crossing the US border. What's the point of being in the EU if you aren't going to act like it? :)

The EU isn't Schengen, that's why.

But that's pretty much only because of the UK. There are a few countries that are supposed to be in the schengen area but aren't, a few countries that got in because it would have been impractical to keep them out, and the EU countries except the UK and Ireland (who are only out because of the UK).

What is absurd is that whether you can enter or not isn't down to any rule - it's down to the particular low paid moron on the particular desk.

I've been told my visa wasn't valid because there should be a blue copy instead of a red copy (he was wrong - as the INS eventually told me) I have been told that I'm only allowed so many visa waiver visits (wrong), that I can't visit my companies US office under visa waiver (wrong)

It's as if every time an airbus landed at a US airport it was upto the baggage handler to decide if it met FAA requirements

Your account has been hellbanned.

On 3, Bruce Schneier has the following advice, which seems a little more sensible than wiping your devices in all cases:

http://www.schneier.com/blog/archives/2009/07/laptop_securit...