A nice summary of why the burden of persuasion ought to rest against governmental involvement in private business:

The essential problem is that very few people spend other people’s money with anything close to the same degree of care and efficiency that they spend their own. This is particularly true of the sort of narcissistic, superficial individuals who are drawn to careers in politics. In the immortal words of PJ O’Rourke, giving money and power to politicians is like giving car keys and whiskey to teenage boys.

Couldn’t have put it better myself.