The Dairy Security Act provisions in the 2012 Farm Bill continue to be a point of controversy in the industry even though both congressional Agriculture Committees have been adamant about including the language on "voluntary" supply control. At last week's World Dairy Expo, a number of producers joined the chorus against the supply management proposals. Producers involved with the Dairy Business Association (DBA) held a press conference at the Expo urging Congress to drop the supply management provision of the program but maintain the margin insurance language, which is something processors also support.According to the DBA, had the supply control mechanisms been in effect this year, it would have triggered in May and cost a 100-cow dairy $...