The mandatory long-form census is -- and needs to continue to be -- a cause for action among libertarians and conservatives, particularly in the United States and Canada. Strong arguments based on the resistance to Big Brother phenomena and social engineering efforts, and the support for other freedom-loving principles, mitigate against a mandatory long-form census. The fight for the long-form census has typically come from the liberals, but even some conservatives are taking the bait. Regardless of who supports or opposes the long-form census and why, the strongest conservative case against these census forms generally rests with their lack of scientific rigor.