The Nevada Republican caucuses are happening today.
- Hillary Clinton and Bernie Sanders will face off tonight in a Democratic town hall on CNN.
- Apple CEO Tim Cook: Complying with court order to unlock iPhone "too dangerous to do."
- Bill Gates: Apple should comply with the federal government and unlock the iPhone.
- Kurdish special forces have rescued a Swedish teenager from ISIS.
- "Drone users are facing the possibility of fines up to $27,500 and even jail time if they have not registered their devices with the federal government."