According to this article on Fox News, the price of milk could skyrocket and the supply to commercial markets would decline. This is all in thanks to Congress getting involved in the dairy industry and passing a law many years ago that dictated how much dairy producers would be paid. According to various people in the House and in Congress, it doesn't look very promising that this issue will be resolved in a timely manner.
If it isn't, the farm policy would revert back to an antiquated 1949 bill that mandated higher prices be paid by the government to dairy producers. If this happens, it could set off a chain of events that results in
higher prices for the government and ordinary shoppers. By
raising the price the government pays for dairy products, producers would be more likely to sell to the government instead of in commercial
markets which would decrease the supply for the average consumer.
I am certainly not claiming to fully understand the whole process (and the economics behind it) of why the government gets involved in the pricing and production levels of various commodities, or lack there of (USDA), but I think it would be a better system if the government allowed the market to determine those things. If the price of milk or corn began to increase greatly under the free market, then the demand would decrease and it would force the farmers to find new innovative ways to do things in a more cost effective manner in order to bring prices down and demand up. Otherwise, consumers might go out and start buying substitutes for those products.