As a Sri Lankan, I feel very offended by claims made about Murali of ICC bending the rules to suit him (15 degree law). I thank u for standing for Murali and I think I need to add to the point that u r making.
The only bowl that was in question was his doosra (11 degrees something). And he was not allowed to bowl that. However, during this time, ICC made an investigation and found out that 23 contemporary bowlers were also bending beyond 10 degrees to 14 degrees. Among them were Shoaib Akthar, Bret Lee, Jason Gillespie etc.. as I remember. Since the rule was old too, they amended and extended to 15 degrees.