"We had a much different dynamic of what was going on inside of Vietnam insofar as what was the cost, the human cost of the war."

VOA: standard.2009.09.09

He says it is true that such crops can have higher output with less cost,but added: No one knows the consequences that will have on soil fertility and the human body.

VOA: special.2010.05.18

The second major cost mainly involves human trafficking.

VOA: special.2009.06.08

Erik Leaver of the Institute of Policy Studies says one big difference is that the strongest opposition about Afghanistan may form over the financial cost of the war rather than the human one.

VOA: standard.2009.09.09