Of course it wasn't smart, and the police were right to investigate. The problem, once again, is when they overreact and start throwing "hoax device" charges around. Did you look at the thing? It was a breadboard with LED's in the shape of a star. If they had determined it wasn't a threat, let her go, and went on with their lives, no one would be any less safe and we wouldn't be discussing this right now. But, as it stands, they seem to really enjoy going that extra step to draw the spotlight to themselves, and it always makes them look like fools in the end...