department's national security division, john car rn over saw the prosecution of marathon bomber of dzhokar tsarnayev. >> still devastating with a new digital component. groups like isis are calling to set the jihad out. crowd sourcing individuals who are inside the united states but inspire by terrorism causes. >> at 43 years old he is the longest serving hat of the security division carlin spoke at a security forum at mit and granted 7 news a rare tv interview to discuss some of the most eminent terror threats we face today, including cyber terror. >> there have been hacks at the rnc, the dnc, and i think some could these cyber terrorists these hackers influence our presidential election? >> we take very seriously the idea that foreign power might influence even if they can't, but even if they just wanted to try to influence our election. it would demand a response. >> the fight against terrorism is the new normal? >> i hate the phrase the new normal. to me it's never going to be normal, and it's never go to be acceptable for a single one f our family members, our friends, to be killed. by one of t