U.S. broadband giant AT&T could roll out 1Gbps fiber-optic service to up to 21 new metropolitan areas, including Atlanta, Chicago, Los Angeles, San Francisco, and San Jose, California, the company said today. The company's rollout of its U-verse broadband with GigaPower service will also include television service. AT&T had previously announced plans to build ultrafast broadband in Austin and Dallas in Texas and in Raleigh-Durham and Winston-Salem, North Carolina.