bruce tully spent 40 years protecting dignitaries around the world. >> this is the highest threat environment that i professionally have ever seen. there's so much going on not just with isis, other terrorist groups and protesters. this is an incredibly critical threat time for us to be involved in. >> reporter: despite the risk president obama praised france's decision not to call off the conference. >> what a powerful rebuke to the terrorists it will be when the world stands as one and shows that we will not be e terred from building a better future for our children. >> reporter: yet the terro threat is alrey distracting from the summit. a march scheduled for sunday was banned due to security concerns. environmentalists staged a silent protest, leaving their shoes in the square they had planned to walk through. but as with so much in this still mourning city, life marches on. jeff, the president will also have a chance here in paris to meet with russia's vladimir putin and other world leaders, whwhwere also juggling this immediate danger from terrorism with the existential threat posed by c

bruce tully spent 40 years protecting dignitaries around the world. >> this is the highest threat environment that i've professionally ever seen. there's so much going on not just with isis, other terrorist groups and protesters. this is incredibly critical threat time for us to be involved in. >> reporter: despite the risk, president obama praised france's decision not to call off the conference. >> what a powerful rebuke to the terrorists it will be when the world stands as one and shows that we will not be deterred from building a better future for our children. >> reporter: yet the terror threat is already distracting from the summit. a march scheduled for sunday was banned due to security concerns. environmentalists staged a silent protest, leaving their shoes in the square they had planned to walk through. but as with so much in this still mourning city, life marches on. the president will also have the chance here in paris to meet with russia's vladimir putin and other world leaders who also are juggling the immediate danger of terrorism with the existential threat of climate change. m

bruce tully spent 40 years protecting dignitaries around the world. >> this is the highest threat environment that i have professionally ever seen. there's so much going on, not just with isis, other terrorist groups and protestors. this is incredibly critical threat time for us to be involved in. >> reporter: the terror threat is already distracting from the summit. a march scheduled for sunday was banned due to security concerns. environmentalist staged a silent protest. leaving their shoes in the square they had planned to walk through. but as with so much in this still mourning city, life marchs on. jeff, the president will also have a chance here in paris to meet with russia's vladimir putin and other world leaders who were also juggling this immediate danger from terrorism with the existential threat posed by climate change. >> glor: on the subject of the summit, what is the president hoping to accomplish while in paris? >> well, the goal is to reach an agreement that would reduce green house gases, which are blamed for rising temperatures and ecological disasters. but jeff, even if a d

bruce tully protecting dignitaries around the world.(sot sun0095 bruce tully/security expert (enthusiast) (1:06) "this is the highest threat environment that i've ever seen. so much going on not just with isis other terrorist groups and protestors this is an incredibly c cdible, critical threat time fofous to be involved in" (-:20) (sat0056) 0,000 police and armrm personnel are stationed throughout the country. (sun0095 :53) security is such a concern president obama is staying at the heavily guarded u-s ambassador's residence instead of a hotel. don champion, cbs news. 3 3 early numbers show thanksgiving holiday shopping sales were off to a good start.were off to a shopping sales 3 3 cbs news. don champion, cbs 3 as part of the beefed up security... almost 1000 people thought to pose a security risk have been blocked from going into france. 3 early numbers show thanksgivivi holiday shopping sales were off to a od start.sales tracker (uh - doe - bee) adobe estimates more than one billion dollars was spent online thursday. up 22 percent

former diplomatic security agent bruce tully has spent 40 years protecting dignitaries around the world. >> there's so much threat analysis out there, not just from isis, copy cats, but also because of the protesters for the conference itself. >> reporter: envnvonmentalists silently protested the ban on their march, leaving their shoes through. as with so much in this on. here in paris, president obama also discussed the fight against isis with france a a china. white house officials say he'll likely have a chance for what's sure to be another difficult chat with russia's vladimir putin on his role in the battle thank you. >>> the suspect in the deadly siege of a planned parenthood clinic is due in a few hours to make his first court appearance. robert lewis dear is accused of killing three people on friday at a colorado clinic. it includes a policeman and mother of two and an iraq war veteran. she was at the friend to support a friend at the time. dear surrendered to police after a long standoff lasting more than five hours. >> mourners gathered sunday at the church with one of the vic