I've read this thread a few times and readily admit this is a field where my knowledge is lacking. Caveat aside now.
There were two 'new' weapons in recent memory that attracted political and eventually public attention: land mines and cluster bombs.
The end result was for land mines the Ottawa Treaty in 1997, for details:http://en.wikipedia.org/wiki/Ottawa_Treaty and for cluster bombs a Convention on Cluster Munitions, in 2008, for details:http://en.wikipedia.org/wiki/Convent...ster_Munitions
For parochial reasons I always associate Diana, Princess of Wales, with the land line campaign. Without such interventions by a public figure I doubt there will be any political consensus for international action; interventions that follow the use of 'new' weapons and public exposure.
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