So, in light of today's terror attack, once again using a car to plow into pedestrians by a light rail train station, security authorities have instructed the Light Rail system (CityPass) to construct concrete barriers in front of the stations, to prevent cars from ramming through, as well as construction some sort of barrier at the entrance that would only allow trains to pass through and not cars.

Perhaps necessary. What's next - concrete barriers in front of every bus stop? line the sidewalks of every outdoor mall with concrete barriers? When they see these barriers and decide to drive into crowds outside a movie theater or shopping mall, then what? The security forces need to come down with a heavy hand. Rudy Giuliani style. These guys know that they are probably going to die, and for whatever reason they are ok with that.

And, are trains narrower than cars? Citypass has to build some sort of barrier that will allow trains to pass but not cars?

The government needs to do something that they wont be ok with - banish their families, arrest family members, something. Even though it is collective punishment. The situation will continue deteriorating if nothing is done to deal with the problem itself..

With Hamas taking responsibility, how is there still a ceasefire agreement between Israel and Hamas?