The military’s Special Operations Forces, which played a pivotal role in toppling the Taliban government in Afghanistan and in capturing Saddam Hussein in Iraq, are now grappling with proposals to give them an expanded and more complex mission in the global campaign against terrorism, senior commanders and top Pentagon officials say. While their ranks are growing and their budget is increasing even faster, Special Operations Forces have yet to fulfill completely Defense Secretary Donald H. Rumsfeld’s order 18 months ago to take control of the military’s counterterrorism mission. Full Story