"The plan is not workable and will not make New Yorkers more secure but will inconvenience them as police go about finding a needle in a haystack," Lieberman said.


That's about as accurate as you can get.

If you don't start the airport style security on the subways and buses, then why bother?

I can answer my own question:

It makes all the 'tards feel better. Just ask them. Every single one of them likes the addititional security presence. Makes them feel "safer".