What's the world coming to?

I read today about a family in Germany who ran afoul of the law for refusing to enroll their children in public school. They insist the school system is preaching an atheistic worldview to their children and reserve the right to homeschool their own children with the Christian values they believe.

Here's the question. Who determines what is acceptable for a parent to be teaching a child? Apparently this local government in Germany felt so strongly that these parents were corrupting their children that they actually put the mother in jail for ten days. The father fled with the children and took refuge in Belgium with a Christian organization.

I know there's been a lot of debate in the U.S. about the whole Homeschool movement. In Canada homeschooling seems to be tolerated but frowned upon (depending upon the school board). Any homeschoolers out there? Any anti-homeschoolers out there? Where do we draw the line?