much intelligence led. perhaps arguably there could be more measures to use barriers, heavy concrete around, say, marketplaces to stop vehicles from entering. keep in mind, there have been plots in germany to target people with weapons and also as a path. the individual who carries the tabbing on the train earlier this year, german authorities discovered his intention was actually to use a car to mow people down. the only reason it didn't happen was because he didn't have a driver's license. just recently last week a 12-year-old was arrested in germany with the intention of targeting a christmas marketplace. so there's a lot of activity going on in germany and the authorities are keeping track with intelligence, but they can't disrupt every plot. >> if people stop going to this events, the terrorists have won, haven't they? >> the goal of terrorism is to kill and maim, the second goal is to cause disruption, to change our way of life, to alter the way we think and feel about our security. it is important that doesn't