If I may ask and if you would like to answer...what was the reason for the refusal to the UK?
I have heard first hand accounts, of other tans women being denied entry or detained, and the issue was so obviously related to them being trans, simply because of the treatment, language used, behaviour of the agents, etc
I think TSA has improved, also they tend to be more relaxed in the bigger cities, and with he crowds increasing, I don't hear to many stories of them being very aggressive with searches anymore as I think they are short staffed and tired of the bad press.
As with the E-gates, it is so much easier to travel internationally, however with the U.S. Customs and the governments attitude towards trans persons, the behaviour of the agents is very poor, simply because they know there will be little to no consequences.
As I said in my original post, I am a US citizen and have been treated worse, witnessed with my own eyes, then foreign persons trying to enter with drug paraphernalia