From Reason:

Rep. Jennifer Wexton’s (D–Va.) “Gun Violence Prevention Through Financial Intelligence Act” would require the Financial Crimes Enforcement Network (FinCEN) to “request information from financial institutions for the purpose of developing an advisory about the identification and reporting of suspicious activity.” The bill’s aim is to identify a consistent purchasing pattern among people who buy firearms and firearm accessories in order to conduct “lone wolf acts of terror” and expose how the firearms market in the United States is exploited by would-be mass shooters.