Amid a heated debate over big tech's role in monitoring terrorism, prosecutor Preet Bharara contended Friday that firms should give some ground on privacy concerns.
Terrorist attacks in Paris and San Bernardino, California, last year led some policymakers and law enforcement officials to ask for more access to communications channels to monitor threats. Many large technology companies have resisted attempts to give authorities a special "back door" through their encryption systems.
But "it's not unreasonable" for law enforcement to legally obtain that access to identify threats before they happen, said Bharara, the U.S. attorney for the Southern District of New York.
"There needs to be a reasonable way to balance security and privacy. The intersection of those two issues is capable of being resolved by reasonable people," he said.