US President Barack Obama on Wednesday assured Americans of their safety and security ahead of the Thanksgiving holiday season by stating that currently there is "no specific and credible" intelligence threat of terrorist attack.
Brigadier Usman Khalid also persuaded the doctor to conduct a fake polio campaign, which led to the terrorist's assassination.
The US military has around 2,200 service members and civilian employees in Turkey, which is a NATO member and a crucial regional partner for Washington.
A senior former Obama administration official said if another attack would have happened like that, it would 'quickly escalates into a regional war'.
Clinton will be a commander-in-chief who would defeat the Islamic State, the US president said, adding she will make a "smart and steady" US president, though not without her share of mistakes.
Democratic presidential nominee Hillary Clinton is the only candidate in the race to the White House who has devoted her entire life to the people of America, outgoing US President Barack Obama has said.
She warned that Trump is not fit to have his finger on America's nuclear trigger.