«To put it mildly, this is a huge, huge problem,” Wray said. “It impacts investigations across the board — narcotics, human trafficking, counterterrorism, counterintelligence, gangs, organized crime, child exploitation. […] I get it, there’s a balance that needs to be struck between encryption and the importance of giving us the tools we need to keep the public safe» – Christopher Wray (FBI Director).

Source : FBI couldn’t access nearly 7K devices because of encryption