CNET Update talks the NSA, Google, and Samsung. Now playing: Watch this: Obama calls for NSA reforms but defends agency 2:56 In this episode of CNET Update: - President Obama calls for NSA reforms on phone records. - Google develops smart contact lenses for diabetics. - The first Tizen phone is canceled in Japan. - HTC reportedly preps a bigger HTC One. - Nintendo slashes Wii U sales projections. - YouTube previews Super Bowl ads. CNET Update delivers the tech news you need in under three minutes. Watch CNET every afternoon for a breakdown of the big stories, hot devices, new apps, and what's ahead. Subscribe to the podcast via the links below. Subscribe:iTunes (HD) | iTunes (SD) | iTunes (HQ) RSS (HD) | RSS (SD) | RSS (HQ) How Facebook helps people with HIV shed the stigma and shame: The social network is proving to be a lifeline for HIV-positive people. Us review: Jordan Peele's horror flick holds up a dark mirror to Get Out: The director follows up 2017's Get Out with a hotly anticipated doppelganger film.