The United States is seeking to avert further criticism over the use of cluster bombs in Afghanistan by warning the Afghan people not to confuse unexploded bombs with food drops.
Embarrassingly, the bombs' yellow casing means that from a distance they are hard to distinguish from the emergency food parcels wrapped in yellow plastic that US planes have been dropping over the last few weeks.
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My favorite line:
"All bombs will explode when they hit the ground, but in some special circumstances some of the bombs will not explode."