SAN FRANCISCO (AP) — The director of the FBI told an annual gathering of cyber-security professionals on Thursday that the agency needs the private sector to help combat what he believes is becoming the nation's No. 1 threat. FBI Director Robert Mueller reiterated his testimony before the Senate Select Committee on Intelligence in January that cyber-threats would surpass terrorism as the country's top concern. 'We are losing data, we are losing money, we are losing ideas and we are losing innovation," Mueller said at the RSA Conference in San Francisco.