NEW YORK - The United States has placed 50 suspected Afghan drug traffickers with ties to the Taliban on a Pentagon target list to be captured or killed, says a report. The 50 have been placed on a Pentagon target list, The New York Times reported, citing a soon-to-be-released US Senate Foreign Relations Committee report it had obtained. The drug traffickers would be targeted either for capture or killing. The Times said the study reflects a major shift in US counter-narcotics strategy in Afghanistan, with US military commanders telling lawmakers about the policys legality under military rules of engagement and international law. The commanders say the strategy is part of a new plan to check the flow the drug money seen as the main source of finance for the Taliban insurgency. Two US generals based in Afghanistan reportedly told the Senate committee staff the traffickers with proven links to the Taliban have been put on the Pentagon list under the same priority category as the insurgency leaders to be captured or killed at any time. Afghanistans drug trade accounts for 90 percent of the worlds heroin traffic and is seen as a major source of governmental corruption. Pentagon spokesman Lt Col Patrick Ryder did not comment on the Senate report but told the Times there is a positive, well-known connection between the drug trade and financing for the insurgency and terrorism. On Sunday, President Barack Obamas national security adviser did not rule out adding more US forces in Afghanistan to help turn around a war that he said is now in crisis. James Jones, a retired Marine general with experience in Afghanistan, said the United States will know by the end of next year whether the revamped war plan Obama announced in March is taking hold. The administration is redefining how it will measure progress, with new benchmarks that reflect a redrawn strategy. An outline is expected next month. Making the rounds of the Sunday talk shows, Jones did little to dispel the growing expectation that Obama soon will be asked to supplement the 21,000 additional forces he already approved for Afghanistan this year. We wont rule anything out, but the new strategy is too fresh for a full evaluation, Jones said. If things come up where we need to adjust one way or the other, and it involves troops or it involves more incentives ... for economic development or better assistance to help the Afghan government function, well do that. The Obama plan is supposed to combine a more vigorous military campaign against the Taliban with a commitment to protect Afghan civilians and starve the insurgents of sanctuary and popular support. It envisions a large development effort led by civilians, which has not fully happened, and a rapid expansion of the Afghan armed forces to eventually take over responsibility for security. If we can get that done ... we will know that fairly quickly, Jones said. The system to measure progress in Afghanistan is several weeks from completion. It reflects creeping congressional skepticism about the war and its costs. The United States has spent more than $220 billion since the US-led invasion of 2001, plus billions for more toward aid and development projects. By the United States own admission, much of the aid money was wasted.