A phone app helped saved lives during Hurricane Harvey

Read how the Zello app helped civilian first responders find and rescue people trapped in Harvey's flood waters. Your phone can seem like a lifesaver at times. But this story from the Houston Chronicle shows how a miniature computer that can install and run apps literally saved lives. You need to read Holly Hartman's story to understand how anyone with a phone app, no matter where they are, can help when a dire situation happens. It's a powerful tale that just might bring you to tears: both at t...