The bill S. 3894, introduced in the Senate, seeks to prohibit the granting or renewing of security clearances for individuals who have expressed support for foreign terrorist organizations or groups like the Islamic Revolutionary Guard Corps and its affiliates, including...
Simple Explanation
The bill wants to make sure that if someone has said nice things about certain bad groups, they can't get a special secret pass. It also wants to check every now and then that people who are giving out these passes are being careful to find out if someone likes these bad groups.