What do you think about this piece of information? is it comprehensive and reflecsive?

LAOS: Laos was heavily bombed by the United States during the Vietnam conflict in an attempt to block the flow of North Vietnamese arms and troops through Laotian territory. Cluster munitions comprised a significant portion of the U.S. bomb attacks over a seven- year period (right ot wrong???) and, due to the technology in use at the time, very large amounts of unexploded cluster munitions were generated, making Laos the only country in the world where cluster munitions constitute the principal and most dangerous ERW hazard. The United States has since provided significant ERW clearance assistance to Laos, which has helped to reduce casualty rates, with annual casualties dropping dramatically by 65 % according to the Landmine Monitor (should we be happy about the amount of assistance? How much each year and in total so far???). In 2006 there were a total of 59 known casualties from all ERW (it is likely that additional casualties took place but were not reported to authorities). The Landmine Monitor calculates that given the sufficient information known about 49 of those cases, the majority of the casualties were caused by handling, tampering, and playing with unexploded cluster munitions. U.S. cluster munitions technology has evolved to ever more accurate and reliable systems since the Vietnam conflict (Should we be happy about this now?).

Full text is in the following source:http://www.scoop.co.nz/stories/WO0802/S00233.htm