CNN Pentagon correspondent Barbara Starr is traveling with the U.S. military all week in Afghanistan and reports that while development - building schools, medical clinics and businesses - is growing in some areas, in other areas where the Taliban is still in control, it continues to be a dangerous and fierce battle.

Starr talks with CNN Radio's Bill Caiaccio on what she's seen so far, how it differs from her past experience there and what the U.S. commanders think of the additional troops coming their way.