I just flew from UK to USA and the UK security (Heathrow) made my 5-year-old daughter go through the body scanner!! Ie, the first metal detector arch beeped fo

I just flew from UK to USA and the UK security (Heathrow) made my 5-year-old daughter go through the body scanner!! Ie, the first metal detector arch beeped for her (I think it was a hair clip she had on) and they said she had no choice but to go through the body scanner. I was not comfortable with that at all, but they lied and told me I had no choice. Immediately afterwards I looked it up online and saw that you can opt-out with a pat down. I was pretty pissed they didn’t let me know this option, told me I had no choice. I think they were being lazy and didn’t want to deal with extra work. I submitted a formal complaint to Heathrow within an hour and they didn’t admit wrongdoing. They said there’s always an option to pay down. But refused to acknowledge their own security people didn’t present me with that option. Anyway, just my rant from what happened a few days ago, somewhat on topic to this. (It’s the UK version of the TFA).