I find the focus on strengthening TTC security to be largely missing the forest for the trees.
What big picture good is being achieved by kicking all the violent folk off the transit system if they're still able to roam the streets afterwards? A transit system is a reflection of the city in which it runs. New York's subway was a hellhole in the 70s and 80s because New York itself was a crime ridden cesspool. We need a top down strategy that deals with crime city-wide, otherwise you will be perfectly safe on the subway, but you'll be whacked over the head when you step outside.
Of course but in the mean time, temporary security measures are needed. Everyone-- including women and minorities-- should feel safe when they are riding public transit.