Have doubts? Lets take the most recent examples and forget about the past decades. Donald Trump wrote in his book Time to Get Tough: Making America #1 Again.: "Then look at Saudi Arabia. It is the world's biggest funder of terrorism. Saudi Arabia funnels our petro dollars—our very own money—to fund the terrorists that seek to destroy our people, while the Saudis rely on us to protect them!" He then sold them billions worth of arms to the "funder of terrorism".
Today, the United States permitted shipment of more than $500 million in precision-guided munitions to Saudi Arabia.
Rep. Dana Rohrabacher (R-CA) actually suggested who should be targeted by the terrorists. Praising the ISIS attack against Iran, Rohrabacher stated: "“Isn’t that a good thing?” he said. “And if so, maybe this is a Trump — maybe it’s a Trump strategy of actually supporting one groups against another, considering that you have two terrorist organizations."
Can the US make it any more clear that it supports terrorists? Is it any wonder they all line up for handouts from the US?