A new bill introduced in Washington, DC last week seeks to block looted Syrian cultural heritage from entering the US. The Protect and Preserve International Cultural Property Act asks Congress to appoint a cultural property protection czar and establish emergency import restrictions to protect endangered cultural patrimony. The bill aims to “deny terrorists and criminals the ability to profit from instability by looting the world of its greatest treasures,” says the congressman Eliot Engel, a Democrat from New York, in a statement. Engel is co-sponsoring the legislation with Chris Smith, a Republican from New Jersey.

Black market sales of looted cultural objects are the largest source of funding for the Islamic State after oil, according to Newsweek.