Communications Major

Staring at screens right before sleep turns out to be a lot worse than previously thought. Dr. Dan Siegel, clinical professor of psychiatry at the UCLA School of Medicine, lays out all of the negative effects bedtime screen viewing can have on the brain and body.

Law enforcement tracking of cellphones is a convenient surveillance tool in many situations, but it is unclear if using such technology without a warrant violates the Constitution.

Companies like Google, Microsoft and Intel are scrambling to reinvent their businesses now that the old model — a customer sitting at a PC — no longer applies. Today it's everything mobile. A revolution that is barely five years old.