As the US completes its withdrawal from Iraq and begins to draw down in Afghanistan, the American military, pursuant to what is claimed to be its “pollute and run” policy, is abandoning millions of kilograms of toxic and potentially radioactive waste.  Everything is being buried and covered over, just as it did in Vietnam and in the Philippines.  The Pentagon seems to hope that all the health problems of US troops and residents of these two war-torn countries can likewise be buried and covered over.

http://kabulpress.org/my/spip.php?article90870

In what seems to be based more on matters of practicality than policy, the use of burn pits will be halted, simply by pulling out of those countries. Acknowledged adverse health effects might be lessened, but will not be eliminated as the pollutant residues remain and vast tracts of land remain heavily polluted.