>> thanks to our guests, will and kalima, and others. we have talked about how living off the grid hez preserve the environment and your wallet and a lot of times your state of mind. what about your privacy? up next, meet the founder of a search engine that doesn't track your every month like google and others. we will see you in two minutes teach for america is supposed to educate poor children. >> schools where kids need grade teaching the most. >> can unprepared teachers make a difference? >> why are we sending them teachers with 5 weeks of training? >>> welcome back. we are discussing contemporary ways individuals are opting out of modern technology and we turn to the way some concerned citizens aresponding to online personal data collection. joining us is niko sell of wicker, an app that self desstructions your text, pictures, audio from your phone and on skype from valley forge, gabe reyell wineberg, founder of duck duck go. thanks for being here. niko, first of all, i have to sunglasses? >> so far, there is no pictures of