Since when is a soldering iron a hacking tool? When I saw that picture on the internet I legitimately thought it was a joke (similar to those magazines telling the parents to look out for "hacking software")
You need to remember that America is stupid enough that working on calculus problems on a plane, is enough to delay the plane and get searched because the person next to you thinks you're a terrorist: https://www.washingtonpost.com/news/rampage/wp/2016/05/07/iv...