a cluster of excuses:
Cluster munitions leave de facto landmines when their duds scatter, often over a wide area. Today they cause a far greater threat to civilian lives and livelihoods than land mines. With 156 states party to the Mine Ban Treaty, the world has already agreed mines are illegal. Their use has been so stigmatised that even non-parties to the treaty like the US, China and Russia are reluctant to use them.