they disturb the viewing experiment on a website. they slow down the loading of the website and a track your every move. and we need a way to deal with that. i propose we start over. >> the second of a two-part conversation with one of the nation's best-known technology watchers as he talks about the reviewing tech products in the future of technology. >> you don't ever watch star trek. there is a computer that is reviewingambien. it understands your idioms and it knows everything. they all god, watched star trek. >> watch the communicators monday night at 8:00 eastern on c-span2. >> this weekend on american history tv on c-span3, saturday at 8 a.m. eastern on real america.

>> general secretary gorbachev, if you seek peace, if you seek prosperity for the soviet union and eastern europe, if you seek a little relation -- liberalization, come here to this gate. gate.rbachev, open this [applause] gorbachev, tear down this wall. > president ronald reagan's 1987 trip to berlin. then at 8 p.m. on lectures in history, paul moreno on how the baby> president ronald reagan's 1987 trip to berlin. boom, suburbanization and teen culture changed post-world war ii society. >> a systemic youth culture. advertisers are looking at this as young people begin to adopt their own trend. the type of music they listen to is very different. there is a type of separation

youth cultu from mainstream culturere. >> sunday on the presidency, on the 45th anniversary of the watergate break, an insiders view into richard nixon's white house and the watergate scandal that resulted in serving an 18 month prison sentence. >> the white house phone rings and i assume it is that dreaded call for nixon. the conversation was surprisingly brief. getpresident wants john to the chopper and meet him at camp david at 1:30. when the white house phone rings again, i fight to stay composed. that was ron, the press secretary, the president now feels very strongly that john and i should volunteer to resign. >> for a complete american history tv schedule, go to c-span.org.

>> sunday night on afterwards, mike lee talks about forgotten historical figures who fought against big government in his book. senator lee is interviewed by a former acting solicitor general. >> when you are on the lookout for the next big company, you ask friends, other people i knew who they thought should get more credit than they get. in the case, an iroquois indian chief. he understood the principle of federalism because they look at it for centuries before we were our own country. i was intrigued i that from the outset because it is not in a most americans know anything about. yet, he had a profound impact on our system of government. tois the guy who went benjamin franklin to learn about --eralism and management

benjamin franklin was a conduit for how this information flowed to the rest of the founders. >> watch sunday night at 9:00 eastern on c-span2's book tv. >> president trump visited miami to announce changes to u.s. policy on cuba, including restrictions on u.s. tourist s. we hear first from congressman mario diaz-balart and senator marco rubio. this is one hour and 15 minutes. [applause] mr. diaz-balart: thank you very much. let me tell you this is a special day to be with the distinguished members of the president's cabinet, including