Is the USA letting Potential Terrorist Muslims in Because we need OIL? Is that why we grant them Residency?

Judging by your words/mindset, you don't have much faith in your government and its abilities to protect its people, abide by its laws, have fair but strict immigration regulations, and you have little knowledge of the differences between the UK and US immigration policies, support next to nothing regarding the words written on the Statue of Liberty or what this nation stands for, and based on your subject title, one could ume that you have this interesting idea that the Muslim's country of origin pays us a fee for admitting them by using oil as collateral.