If you are going to LegalTech New York – or anywhere else in the United States – watch out for the ESTA rules (Electronic System for Travel Authorization) which came into force today. Basically you have to complete an online ESTA form at least 72 hours before your trip to the US, otherwise you could find yourself on the first return flight home. The information you need to supply is pretty much the same as you already supply (were you a member of the Nazi Party, have you ever been convicted of a crime involving 'moral turpitude' – no, but it sounds fun) on those inflight green visa waiver cards you are already familiar with. According to the US embassy in London, so far 99.6% of people registering via ESTA have been approved – the majority within 4 seconds. An ESTA is valid for 2 years – in otherwords, once you have one, you can make multiple trips without reapplying. The attached FAQs & Fact Sheet tell you all you need to know.