to the extent practicable, under such procedures as the President may prescribe, withhold United States bilateral assistance from, and oppose multilateral assistance to, opium-producing areas of Afghanistan if, within such areas, appropriate cooperation is not provided to the United States, the Government of Afghanistan, and international organizations with respect to the suppression of narcotics cultivation and trafficking, and if withholding such assistance would promote such cooperation;

redistribute any United States bilateral assistance (and to promote the redistribution of any multilateral assistance) withheld from an opium-producing area to other areas with respect to which assistance has not been withheld as a consequence of this section; and

define or redefine the boundaries of opium producing areas of Afghanistan for the purposes of this section.