This sounds like more BS propaganda to justify the TSA and their security measures. Even is this were true would anyone expect the TSA to be able to stop this?
Also terrorists could have done this anytime in the last 10 years, so why have they not done it? This kind of action sounds easier said than done. Exactly what kind of explosive would be implanted and how would it be detonated?
Why bother with all this? Just blow people up who are waiting in the TSA lines. That would make headlines.
Then we’d all have to be searched prior to entering the TSA lines...and so on and so forth.
This is theater and nothing else.