Thank you for confirming my decision to avoid LHR at all costs!

On my last trip to Europe, I spent quite a bit more money (about US$350) and endured an extra connection to avoid having to transit in LHR, and I am relieved that I did.

I should point out -- and I say this as an American -- if I didn't live in the USA, I would also avoid transiting in the USA at all costs, too. As long as the security theater continues, I would encourage others to do the same. Based on their treatment of visitors, the USA & the UK are two countries that neither welcome nor deserve our patronage.