While I understand the concern of a teacher but from the article it looks like he is a science or engineering teacher. If he couldn't distinguish between a freaking clock and a bomb then what's the use of his science. A bomb needs way more material (powder) than just a circuit board. Also, if those cop suspected that he is responsible for bomb threat then why didn't they bring the bomb squad? This is not nothing but a unfair racial profiling toward muslims. That teacher needs to get fired and whole school district needs to be fined!. If you are living in an era where you can be threaten by a kid then I think you are building a wrong society.