Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Apple's Refusal to Create iPhone Backdoor Pits Public Safety Against Personal Privacy Michelle Quinn SAN FRANCISCO - A long-running battle between U.S. law enforcement and the technology industry was pushed to the forefront again this week when U.S. Attorney William Barr criticized Apple for refusing to open two iPhones belonging to a Saudi aviation student at the Florida naval air station who killed three sailors. At issue is whether public safety concerns, such as investigating whether the shooter worked with others, should outweigh the benefits of encryption, which allows people to trust that their personal privacy and security are protected while using the technology. Some law enforcement agencies and lawmakers argue that smartphones and communication technology, such as Facebook's WhatsApp, which is built with strong encryption, should also come with a "back door," so that police can gain access. "We should be able to get in when we have a warrant that establishes that criminal activity is under way," Barr said Monday. Tuesday afternoon, U.S. President Donald Trump echoed Barr's concerns, tweeting: "We are helping Apple all of the time on TRADE and so many other issues, and yet they refuse to unlock phones used by killers, drug dealers and other violent criminal elements. They will have to step up to the plate and help our great Country, NOW! MAKE AMERICA GREAT AGAIN." .