President Barack Obama on Sunday heralded the implementation of a nuclear deal with Iran, but said he is still steadfast against Tehran’s threat to the region, Al Arabiya News reported on 17 January 2016.
Obama said world powers had cut off every path it had to a nuclear

The president said the United States still had profound differences with Iran and would continue to enforce sanctions against its ballistic missile program.

He said he was hopeful the events signaled an opportunity for Iran to work more cooperatively with the rest of the world.