The debate over encryption—and decryption—has heated up as U.S. Senators Richard Burr and Dianne Feinstein have introduced a bipartisan bill that would require all tech companies to decrypt customer data at a court’s request. The sponsors argue that, in the wake of the San Bernardino terrorist attack and the ensuing FBI investigation into the shooter’s Apple iPhone, authorities “need to know when terrorists are plotting to kill Americans.” Opponents have criticized the bill, focusing on the privacy implications.