Soldiers detect Unexploded Ordnance and defoliant Agent Orange during the launch of the "environmental remediation of dioxin contamination" project, in Vietnam's central Da Nang City, June 17, 2011. ... more 
Soldiers detect Unexploded Ordnance and defoliant Agent Orange during the launch of the "environmental remediation of dioxin contamination" project, in Vietnam's central Da Nang City, June 17, 2011. The U.S. is now formally involved in the clean-up of Agent Orange contamination in Vietnam. less 
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| Photo By REUTERS/Kham
Sat, Aug 11, 2012 10:00 PM EDT