From The Truth About Guns:

Senator Mike Lee (R-UT) introduced the Silencers Helping Us Save Hearing (SHUSH) Act yesterday, a legislative proposal aimed at reducing federal regulation of firearm suppressors. The bill is designed to simplify the purchase process for law-abiding citizens and eliminate bureaucratic hurdles. Senate cosponsors include Senators Rick Scott (R-FL), Marsha Blackburn (R-TN), and John Cornyn (R-TX).