. >>> joining me here in los angeles, aaron cohen a former member of israel's special victims unit. can you tell us the significance of where this attack happened? near the kaiser willhem church? >> this is a busy area of berlin. it's one of the main shopping thoroughfares in berlin. it has one of the better known christmas markets which draw in thousands of tourists from all over the world and local berliners and germans who come up to the city to enjoy the holiday spirit. late yesterday evening this incident happened. parts of the market area have been reopened, but the area is filled with all kinds of police and security units. >> do you believe the location carries any special significance? was this simply a soft target waiting to be hit? >> i think it's a combination of both. the reason why is terrorists are known to go after large youded areas. i believe this particular area was thoroughly crowded it made a good target. it's a combination of the two, the fact that there's a heavy holiday suggestion and where the market was. there's a combination of the two, it's actually a sof

. >>> for more, joining me, aaron cohen, and in indiana, juliet ed ed edna. aaron, let's pick up on what we heard from max about the suspect being detained. possibly a refugee from pakistan or afghanistan. a lot of red flags have to be raised. >> there's no doubt that the origin of the suspect, based on the natural print of terrorism. these are countries that have a higher rate of terror. and that's something that needs to be looked at. it's not politically correct to say it. but it's the way you have to investigate terrorism. and looking at the print of the fact that a specific truck by a person drove into a crud of people in a specific area for a specific time of year. a lot of red flags there. the conflict with chancellor merkel, you slow down the possibility of being able to prevent further attacks. and that political correctness has a lot of pressure on her. at the end of the day, it's about reducing risk to the german people. that's really where i come out. what are we doing? >> with that in mind, do you se a problem here with the slow pace of the detail

. >> aaron cohen is with us. he's a former member of israel's counterterrorist unit.ith us. law enforcement can't track anyone. you have a failed asylum seeker, facing deportation. links to a known isis recruiter. he had been under surveillance. they thought pe he was involved with a burglary. >> this is not just a face in the crowd. this is somebody who german authorities were looking at. it's not just german authorities. there's so many countries across europe. for interpol to centralize that information, they are a key ingredient with that. where was the surveillance? why did it stop? that is the key and first part of all of the preemptive work in order to prevent future terror attacks. so, why weren't we listening to his cell phone? why weren't we tracking his cell phone? everything is done with the cell phones. they tap into that cell phone. if he's been red flagged, there's a team of people who track the cell phobes of the suspects who have been red flagged. you know he's trying to leave the country, who is trying to get into another country -- this is an operat

for more on the manhunt as well as the investigation, we are joined by security expert aaron cohen, formerber of the counterterrorist unit. why was a failed asylum seeker with amri's background walking on the streets and how many other anis amris are out there waiting to get behind the wheel? >> those are good questions. the first part of it, failed law enforcement is the reason why he was capable of being able to move around. he was obviously arrested in italy and ended up in germany. for whatever reason, the policies regarding counter terrorism in europe are still pretty tame. everyone needs to grow up in europe regarding the terror threat. it is no more mr. nice guy. with immigration and merkel, politics have to be weeded out and the policies and law enforcement routines need to reflect a modern threat. that needs to be upgraded. >> a new reality. >> yeah, it's a whole new framing of just the way it's looked at. >> on the other hand, does it sit easily with you it is this guy's identification papers that were found the truck. it all seems too easy in some respects. could they have been

. >> dinam books was started in 1964 by my parents aaron and rufte cohen.hey wanted to open a western history and civil war books store in scottsdale and the first store was on main street, and there's a story that when somebody saw what was going in, they told my father well, you're only going to be here six months and it's now been over 52 years that we've been in scotts dame. dinam books is to what i believe libby custard, george's wife wrote three books after she was traveling with her husband and one of the books was following the guidon. father was a great custer collector. my mother loved the civil war but was very enamored with women in the west. we have books on western history. we focus a lot on arizona. of course, the southwest indians, apatchies and navajo history. a lot of people enjoy reading earp tombstone, the wyatt and doc holliday characters. sometimes the superstition mountains, just south of here. looking for the lost -- mine. but they're also interested in cowboys. we have a lot of early cowboy recollections. how-to ease. custer, a grea