There is no evidence that is being done. If any agency in the US is charging money for Halal certification, you can be certain the IRS and Homeland security will keep very close tabs on what they use every penny for.
Is there any evidence any Halal agency has funded any occupation or imperialism?
Is there even any evidence any of them have actually made any money?
Campbells soups are Halal certified through IFANCA not ISNA like the "Fear Mongers" are saying.
SOURCE
Can you imagine the Hoops an Islamic Charity, in the Americas, has to jump through to prove they are not funding Terrorists? If anyone plans to fund terrorists it is not very smart to even claim to be Muslim.
If an agency is going to be openly Muslim in the USA, they best be certain they do everything in full accordance with the laws.
The Fact a person in the USA is a Muslim is almost certain they will be under a government microscope.
Any group funding terrorists is going to deny being Muslim and will use a front that appears to be anti-Muslim and All American.