X-raying Guns

One other funny thing I remembered while traveling through the new Beijing airport was when I left my iPhone in my pocket while going through security. It set off the metal detector and I got hand waved by a guard. He found the iPhone and I showed it to him. Then, funny thing to me, he ran it through the x-ray machine. I knew it was just an iPhone, but then this article and video showing off cellphone guns helped explain the reason for being extra cautious. You can never be too sure!