(a)
In general— No United States Government officer or employee may collect information or establish or otherwise utilize a database, or similar for the purpose of classifying or surveilling, on the basis of religious affiliation, a United States national, an alien who is lawfully present in the United States, or any alien who applies for a visa or seeks admission to the United States or on whose behalf a petition under the immigration laws is submitted, or conduct any study related to the collection of such information or the establishment or utilization of such a registry, database, or similar.
(b)
Rule of Construction— Nothing in this section may be construed as prohibiting the collection of information that is voluntarily provided and from which personally identifiable information is removed, to be used strictly for statistical purposes, including those permitted under section 9 of title 13, United States Code, that do not violate section 2 above.