over the years, robin li has become friends with mark zuckerberg. when zuckerberg made his trip to china in 2010, one of his first stops was baidu headquarters. facebook remains blocked in china. there have been reports the social network could rejoin the country in a joint venture with baidu. other sites have grown so big in the meantime, that li says it is too late. i will ask li whether he thinks facebook will ever be unblocked. but first, before anyone knew how big baidu could become, it attracted the attention of u.s. technology companies. li turned down offers from yahoo!, microsoft, and google. here is what he has to say about how hard that was. >> it was not easy. in the early days, before we went public, we had investors, and they were based in the u.s. they respected the tech giants here. when there is a possibility to cash out at a price higher than they had expected, i would not blame them to think about it. lean toward selling the company. but for me, i knew that we had much brighter future than most people have thought about. i tried v

robin li says the chinese people want bigger screens. >> not just chinese people. >> i spoke to robini specifically about apple and this is what he had to say. >> they have experienced here in the u.s., but in china, the chinese characters are very different from english. you need a bigger screen to do that. apple does not allow good search engines to be uploaded on the app store. >> i did not realize that part about chinese characters and the difficulty of the language barrier. >> it is a closed system and it is hard for them to adapt. >> when it comes to the competition, there is samsung which is the leader. apple had a lot of company nipping at its heels. a lot of it is cheaper. huawei is another company that is offering smartphones at a much lower price. >> they are doing better than apple right now. we have the coo of huawei is joining us today from san francisco. you are pulling back on telecom, which is your core business in the u.s.. i know you have some difficulty with u.s. lawmakers concerned about your relationship with the chinese government. can you talk to us about your

i spoke with robin li about apple. listen to what he hasto say. >> apple has experience in the u.s., but in china, the chinese characters are very different from english. you need an input engine method. apple does not have a good one. they did not allow it to be uploaded. >> that was interesting. i did not realize that about chinese characters. >> apple is such a closed system that it is hard for them to adapt to different market sometimes. -- different markets sometimes. >> when it comes to the competition, there is samsung which is the leader. apple has a lot of competition. there is xiaomi. >> they are doing better than apple. >> a lot going on. we have the coo of huawei joining us from san francisco. you are pulling back on your core business and in the united states. i believe when you are taught french journalist, you had difficulty with the u.s. lawmakers concerned about your relationship with the chinese government. can you talk to us about your u.s. business right now? >> we are not leaving the u.s. we are gr

i sit down with the baidu cofounder, robin li, for a rare, exclusive, live interview. talk about how he built baidu into china's largest search engine, and the challenges in a country with censorship. his relationship with tech icons like mark zuckerberg. and what he thinks of apple. but first, here is an introduction to the booming business that is baidu. china is one of the fastest- growing economies and tech

i sit down with the baidu cofounder, robin li, for a rare, exclusive, live interview. talk about how he built baidu into china's largest search engine, and the challenges in a country with censorship. his relationship with tech icons like mark zuckerberg. and what he thinks of apple. but first, here is an introduction to the booming business that is baidu. china is one of the fastest- growing economies and tech industries. some 600 million users are

baidu'shas overtaken robin li. his fortune is valued at $13 billion.s shares in search. -- surge. they may challenge alibaba. now to ai, beyond robots. we have talked about how artificial intelligence is going to dramatically change the way we live. head ofd about the facebook. we have somebody coming from microsoft. he nearly as the head of their research and he joins us now from redmond, washington. you are in charge of more than 1000 research labs around the world. what kind of thing are you focusing on? >> we are really covering a huge array of things. almost anything you could imagine in computing research and other parts of math, physics, computer science. now, really onht point for this segment, is artificial intelligence. we have been very focused. it is our largest investment area right now. >> one of the things you're working on is a virtual assistant. what could he or she do? isone way to think about it -- they try to answer questions and figure things out. one type of question is to figure out what questions? or ifid that person say you see

. >> lot of lies being put out there. >> reporter: now, robin, i don't know if you can see.ous to see what happens here. while we felt like we've known jeesh for years. he is still just 19. below the legal drinking age. that dui is very serious. he could face a possible six months in jail if he's convicted on that charge alone. robin? >> sometimes we forget that, matt. thank you very much. somebody wants to get arrested so he can be inside with him. >> don't try that. >>> let's move on to the next story. i love this one. it's about a boston math whiz who figured how to get the girl of his dreams. they're getting married now. abc's abbie boudreau looked at this brainy path to the alter. >> it's a little more beautiful mind than the notebook. but it's still got the job done. mathematician chris mckinly so fed up with online dating he resorted to math to find his true love. >> i probably went on maybe a date or two a month for four or five months. >> reporter: frustrated but still hopeful, mckinly says he built his own algorithm to attract the best matches from the dating site