I don't know much about the history of farm subsidies but on the point of government intervention perhaps it made sense at some point in history but its time has past. Anyone who tends to argue for government intervention / regulation is usually pretty realistic about the need for the policies to be continuously adapting and evolving over time. It'd be silly to think we should never revisit these policies just because they've become the accepted political status quo. I'm a fan of any regulation / intervention to come with built in sunsets instead of being considered something that will stay on the books indefinitely.
