The Polar Vortex continues to wreak havoc on the Midwest, A series of rain storms makes its way into SoCal, NBC 4's Joel Grover says L.A.'s Typhus problem has left the Skid Row area and moved into office buildings, Police release photos of "persons of interest" in the Jussie Smollett attack, USA Today tech writer Marc Saltzman explains how to stay safe from the iPhone FaceTime glitch and how to get the most out of your TV for the Super Bowl, and Some strange science news!