Originally Posted by
red456
I can't find it now, but there was a long article on cbsnews.com that IIRC implied that at some point in time its use would become mandatory.
Originally Posted by
Wally Bird
It is not mandatory because it is in the test phase. If it 'passes' the test, it will become mandatory. It has no chance of 'failing' the test. It will be mandatory.
It will never be mandatory, you will always be able to opt for another form of screening. If you empty your packets and everything out well and aren't carrying anthing to set off the regular metal detector than you shouldn't have to deal with it at all.