Would you take a suit case with a bread bored, exposed wires, and a 9V battery through security at an air port? How about higher security areas than that?

There is a very, very big difference between what was worn and something that one would associate with being a light up sweeter.

When I heard the story I assumed this ( http://cdn.shopify.com/s/files/1/0070/8002/products/g513a-ch... ) was what was being worn.

There is a big difference between exposed wires, batteries, with blinking LEDs stuck together on a breadboards and Legos. When going to an area with elevated tension, security, and crazed guards the gap between "weird" and "threatening" is quickly closed.