WASHINGTON, D.C. - In one of the top stories coming out of Washington, The Atlantic magazine editor-in-chief, Jeffrey Goldberg, shares he was added into a group chat which included the Vice President, Defense Secretary, the Director of National Intelligence, the National Security Advisor, and others. Goldberg said the group was detailing plans of an attack on rebels in Yemen. According to Goldberg, the group was using the app Signal to communicate. Experts explain why Signal is different from regular text messages and if the app is secure for sensitive conversations. Signal is an encrypted service for text messaging, phone and video calls.