White House aide said all U.S. troops could be withdrawn from Afghanistan . Senator Bergen said the idea would be dangerous and send the wrong message . Read related : Afghanistan vet finds a new way to serve . He says U.S. has abandoned Afghanistan before and saw the rise of the Taliban . Bergen : U.S. is in agreement that military will have immunity from prosecution .
White House aide said all U.S. troops could be withdrawn from Afghanistan . Senator Bergen said the idea would be dangerous and send the wrong message . He says U.S. has abandoned Afghanistan before and saw the rise of the Taliban . Bergen : U.S. is in agreement that military will have immunity from prosecution .