history flashed before their eyes as thousands returned to prelims iconic aleksandr plots to mark their moment that would help change the city and the country forever. we want to make it possible to relive what happened back then and also the developments since then the road doesn't always been smooth over the last 30 years but we succeeded at something we can live together without a wall in peace and freedom in feeding on fire. on november 4th 1909 more than half a 1000000 protesters descended on the square staging what would become the largest demonstration in the history of east germany led by some of its most prominent intellectuals they rose up to demand more freedom. is is. this is if someone has pushed open the window. after years of intellectual economic and political stock a nation good trial for the. years reeking of apathy 4 years of double speak and bureaucratic despotism. what. if. the communist regime had rapidly and publicly lost all support but even then no one predicted that just 5 days later the berlin wall would fall. this week the spirit of the peaceful revolution on

. >> reporter: her introduction into the nra was facilitated by this man, aleksandr torshin, a russianicial who she had admitted in court papers directed her activities in the u.s. butina met him, she says, when he attended one of her gun rights rallies in moscow. we obtained thousands of private twitter messages they sent each other over 2 1/2 years. was he close to putin? >> i don't think so. >> so you wrote him a message and you said "you are an influential member of putin's team." your words. >> it doesn't suggest he is close to putin in any way. >> was he an influential member of putin's team? >> i don't know. >> well you wrote that. you know, in reading through your messages, it reads as if he's your intelligence case officer. >> look, this is -- i think it's an american very old saying that suggests that wolfs have teeth, but not all animals with teeth are wolves. you cannot judge a person based on appearance. >>> a slow motion drama is unfolding at one of north america's most famous tourist sites. it's happening at niagara falls upriver on the canadian horseshoe side of the fal

colonel aleksandr osadchuk commanded a separate unit, 74455.f his officers was in charge of spreading the stolen material to political operatives, bloggers, and the media. another hacked state election boards. it wasn't some 400-pound guy in his parent's basement? >> anderson: no. this was a well-choreographed military operation with units that not only were set up specifically to hack in to obtain information, but other units that were used for psychological warfare were weaponizing that. this is not an operation that was just put together haphazardly. >> john demers: so that was the 26165 unit? >> whitaker: the justice department's national security division is overseeing the russian hacking case. >> demers: once they're doing that keystroke monitoring. >> whitaker: assistant attorney general john demers runs the division, along with deputies adam hickey and sean newell. d.o.j. attorney, heather alpino, worked with special counsel mueller on the russian indictments. all have access to the underlying intelligence, and have no doubt the russian