CNN CNN Newsroom November 26, 2015 21:23:00
To get the risk to zero. but through layer defenses you can try to minimize the risk. but we can't bring the transportation systems to a halt because you put a security layer so strong up against it. >> bob, i want to turn now to talk about these two suspects in the paris attacks still on the loose, salah abdelsalam and mohamed abrini. what does it say to you about whether they're getting some sort of help here? do you think there's any way that they can remain on the run here without getting some sort of assistance? >> look, the problem is that these people obviously have a network. you can't...