Assad is a marked man to every senior officer in the US military for his role supporting the insurgency in Iraq. He is responsible for the deaths of many American soldiers and his allies in Iran are responsible for many more
He has a chance to make good and live.
That said, he deserves credit for helping derail obama’s Arab Spring Muslim Brotherhood hostile takeover of the Middle East and the rise if the Islamic State
The melt down of the Middle East and the invasion of Europe by Islamist “refugees” is bad enough as it is but can anyone imagine where we would be if Obama's Arab Spring plan had succeeded and Assad had fallen to ISIS, MB Islamist Mohammed Morsi was still in power in Egypt and Benghazi never intervened to shine light on what Obama and Hillary Clinton were up to in Libya?
He either acts in the interests of America or he and is gone.
He is protected by Putin and has nothing to fear.