In the US, such changes would probably forbid passengers from wearing belts and forbid them from holding on to their pants while walking through the WTMD. "I have to SEE your HANDS!" The TSA would say.

Something tells me that these changes will be a short-lived reaction to the bombing.

What non-metallic weapon could one hide in a belt? I guess that one could make a belt out of Semtex, but there are plenty of other accessories that could be used for such a purpose.

Above all, isn't it worth reminding everyone that Richard Reid was NOT SUCCESFUL? Nobody got hurt. And I think it's also worth mentioning that Reid was originally denied boarding by ICTS. In other words: the shoe bomber didn't hurt anyone (except for emotional pain), and he was only allowed to board due to a miscommunication among airport staff.