Visa waiver travel to US pitfall
A lot of people are getting caught on this minor, but crucial issue.
British passport holders are entitled to visa-free travel to the US if they can meet a few conditions (return ticket, <90 day stay).
HOWEVER, if the passport says anything other than 'British Citizen' for nationality, this does not apply. I saw people turned away from Delta flights over the New Year, as their passports said 'British Subject.'
Some of these people were heading for cruises, and probably lost a bunch of money.
I got the impression that this happens a lot, and that they can sometimes get a waiver out of the embassy to transport the person, but the embassy was closed over the holiday.
INS and embassy websites have the correct details, but the Delta in-flight magazine (in the section oh how to fill out forms) does not.