harm we work with law enforcement to you know do what we can. >> reporter: the founders say they are focused on expanding beyond the college audience and people looking for a facebook alternative. >> i think facebook and other apps where you have to keep up with the pro-mile is very heavy and yik yak is light weight. you can talk like real life. >> that does it for us for this hour. thank you for joining us. i will be back with a check of your headlines in just a moment with another hour of "cnn newsroom." . don't go anywhere