Gule became known to the general public in 1977 when after having joined the DFLP group, Gule was arrested in Beirut, Lebanon with explosives in his luggage intended for Israeli targets leading to a six month conviction and subsequent deportation.[2][3] He remains active as a pro-Palestine activist.[3] Gule is often used by Norwegian media as an authority on questions regarding the Middle East, Islam and extremism.[3]