A California man was sentenced to 15 years in prison for attempting to join the Islamic State and lying on a passport application, federal officials said. Adam Dandach, 22, was arrested on July 3, 2014 at John Wayne Airport, where he was planning to board a flight to Turkey en route to Syria to join the terrorist group. Dandach also posted online under the Twitter handle @Al_Fadi1414, where he engaged in conversations with Islamic activists and used a photo of the U.S. covered by the ISIS flag as his profile image, according to the Counter Extremism Project.