Roadside bombings doubled , kidnappings rose in Afghanistan in past year . U.S. ambassador says cultivation of opium poppies used for heroin declined . U.S. President-Elect Barack Obama has vowed to tackle resurgent Taliban . Comment:
Roadside bombings doubled , kidnappings rose in Afghanistan in past year . U.S. ambassador says cultivation of opium poppies used for heroin declined . U.S. President-Elect Barack Obama has vowed to tackle resurgent Taliban . Up to 30,000 additional U.S. troops could be sent to Afghanistan in 2009 .