isatou is 14 years old and affectionately known as izzy to her friends. izzy was born deaf and diagnosed with ushers at age 10. she uses american sign language to communicate and attends lexington school for the deaf in new york city. consider, however, how her vision impacts communication at home. the way she's growing up, she is going to be losing her vision. she won't be seeing that much, and i know because now when i am talking to her, when i tell her something, when i sign her something, she might see me, but she won't see all the signs, or sometimes when she is walking in the room and then light is not that bright, and you can see she's bumping into things, or she's holding stuff and see where she going. when she drops something, it can be in front of her, but she won't see it. narrator: while an individual with ushers can see in good lighting, hihis or her field of vision is greatly reduced. in the classroom, izzy can only see one person at a time and often misses what her classmates are signing. even while watching her teacher, some of the words h

. >> their goal isát)r'g it easier for couch potatoes. watching "world news now." ♪ because the night belongs to lovers ♪ >>> you know, the way we watch tv has always been and will always be changing, evolving. >> that's true. televisions coming with wireless internet connections. where it goes from here, basically anyone's guess. here is the bbc's rory kellan jones. >> reporter: the internet revolution has been slowed. silicon valley believes it can change our relationship with tv. one small san francisco software company dijit has a big idea. here's the problem. today's tv user has almost too much choice. lots of material in the form of movies, programs, sports and so on. lots of set-top boxes. and all these remote controls to get access to that material. so what if we took all of them away and replaced them with one second screen? dij dijit believes this second screen whether a tablet computer or a smartphone can make choosing what we want and sharing it with friends a lot easier. but it was when i headed to google's hq that i found th

you might ask for your mama's conner isation but not her permission. so you've got to decide what is your vocation, not just your profession. what is your calling, not just your career. don't tell me about your job, i want to know about your life's task. and once you decide that, you go into the laboratory, i'm going to be a scientist, i'm going to be a doctor, i'm going to be the poet. i'm going to be a musician, i'm going to be the pharmacist. and then find time within your vocation for your activism. you see, now, if your calling is to be a full-time activist like this brother right here -- [laughter] it's a beautiful thing. but as we said, imitation is suicide. everybody can't be a full-time activist. is that right? >> not everybody, no. >> exactly, exactly. [laughter] i know i couldn't do it. i've got other things. [laughter] i got to get to the studio, get to the library, the laboratory, hit the church and the club. [applause] [laughter] hey, i got one life! one life to live! [laughter] [applause] all in the name of jesus, too. [laughter] [applau

spies and terrorists have invaded our country, and we must identify and isate these enemies before theye again. unite with me to restore america, trust in god, individual liberty, and equality before the law. together, we can face the world with courage and confidence. take action and pray, and vote joe story, just an average american running for president of the united states. my website is the average joe for president.com. >> thank you. that ends the opening crawl marks. -- remarks. will not go to panelists. the panelists will -- we will now go to panelists. the panelists will be just a question -- asked a question. the kids will have 45 seconds to de. -- the candidates will have 45 seconds. the first will be to dr. hugh cort. >> right here, last weekend in a form with former speaker gingrich and former ambassador n huntsman, they both agreed that iran would be the biggest foreign policy problem for the united states in the coming decade. do you agree with that, and more importantly, what you think the united states should do about iran? >> a very good question. i am friends with gen