Is America behind the creation of the Islamic State? The BBC's Suzanne Kianpour, in Beirut, looks at the latest conspiracy theory doing the rounds in Lebanon.
"In the Middle East, conspiracy theories are in our blood," one former Lebanese official said over lunch in a restaurant in central Beirut.
He was referring to the latest talk of the town: the United States is behind the creation of the Islamic State group (formerly known as Isis, the Islamic State of Iraq and Syria) and Hillary Clinton admitted it in her book "Hard Choices".
As Islamic State (IS) militants advanced into Lebanon last week - spreading terror into the village of Arsal, bordering Syria, and driving hundreds out of their homes - whispers pinned the blame for their actions on the US.
Horrific videos of IS atrocities against Lebanese Armed Forces circulated on the internet. So did the theory that America is behind the existence and emboldening of the group.
To back up their claim, conspiracy theorists online pointed to a powerful piece of "proof": the word of Hillary Clinton - the former US secretary of state widely expected to make a bid for the presidency.