The dangerous thing is the Saudis are so rich their reach is very far, they even build and fund mosques and religious schools here in the US.
What makes this a dangerous thing?
The mosque that I attend was built with the help of several million dollars in Saudi donations.
I am on the board of the mosque.
And not one time has the Saudi benefactors ever tried to influence our decisions concerning the running of the mosque.
Saudi money goes to fund madrassas in Pakistan and Afghanistan that promote hatred towards the West Sunni, so alot of people are suspicious of that.