President Obama pays tribute to the victims of the September 11th terror attacks in his weekly address, and vows to continue the fight against terrorism.

Obama says the U.S. has delivered devastating blows to the terror organizations since then, and "delivered justice" to Osama bin Laden, but more work needs to be done in Afghanistan, Iraq and Syria.

The President says the U.S. will stay relentless against terrorist organizations like ISIS and al-Qaeda until they are destroyed.