We are doing a poor job of fighting the terrorists at home if we continue to allow Muslim immigrants, especially from Pakistan, Somalia and Yemen, into America. We won't win this war if we permit the uncontrolled construction of mosques, as well as Islamic schools, some of which already have sown the seeds from which future terrorists will be cultivated. We won't win this war if we continue to permit the large-scale conversion to Islam of prison inmates, many of whom become radicalized and upon release enlist in al-Qaida's army. [Emphasis added]
Thomas doesn't indicate how he would prevent prison inmates from converting, but one thing is quite clear: He wants to tell American citizens what religions they are allowed to practice.