too many exits/entrances. The lines would be insane

In the NYC subway system.

I can't even begin to enumerate all the things that are bad about it.

-- Mal

Why not just allow the powers to water down the 4th amemdment more, Mal?

I mean, we're only three or four steps from a full police state anyway (and I lived in two police states).

Sending the state troopers and National Guard to help with reducing crime in NYC's subways is really more of a "show of force" to deter people with ulterior motives. The same approach was used in the airports after 9/11 when state troopers carried their usual weapons and the National Guard carried M-16s and other weapons. Give them a week or so in the subways and you'll probably see a big drop in subway crime.

funded and trained one.
Of course it needs to be setup with detailed background checks as a requirment and firm rules that do not favor a new hire because they were a police officer somewhere else or because they served in the military.

We'll gladly give up our freedom for the illusion of security. It works so well in communist China (and before I get anything, remember. . .lived there for 15 years).

Hooray for the police state.

They probably are not putting these cops at high crime areas, just high visibility areas like Times Square.
It's just a dog and pony show afaic. Someone will raise 4th Amendment concerns, and it will be over.
Why not just bring back the Transit Police. It would certainly cost less.

where they actually go.