They've closed the tunnels under the harbor as a joint federal, state and local security operation. When I worked at the cubicle farm to the south, I would get the creeps big time using them twice a day. (It didn't matter which one I took) Imagine, as I did every single commute, the damage a simple car bomb would do to the world's only eight-lane underwater tunnel for vehicular traffic. I'm glad I don't have to use either tunnel anymore.