Verizon Wireless experienced a widespread service outage, leaving more than a million customers unable to receive calls or reach 911. Law enforcement sources told ABC News the outage is believed to be problem with a server, not a cyberattack. Aaron Katersky has the latest. https://abcnews.link/gVkVEZm?utm_source=facebook&utm_medium=social&utm_campaign=dhfacebook&utm_content=app.dashsocial.com/abcworldnewstonight/library/media/630123975 | ABC World News Tonight with David Muir