captioning sponsored by macneil/lehrer productions woodruff: good evening. i m judy woodruff. u.s. and nato forces continued their assault on taliban strongholds in afghanistan today. ifill: and i m gwen ifill. on the newshour tonight, the latest from the battlefield, as reported by rod nordland of the new york times. woodruff: then, the debate over the obama administration s anti-terrorism policy, as vice president biden and former vice president cheney take their differences to the airwaves. ifill: health correspondent betty ann bowser reports on increasing premiums and profits in the insurance industry. woodruff: after an athlete s death, a look at the dangers of winter sports, as the vancouver olympics continue. ifill: and controversy in california, where undocumented aliens claim they re the real targets of d.u.i. checkpoints. woodruff: . cities are exploiting a broken immigration system, exploiting broken state law, taking advantage and exploiting vuln