American citizens seem to understand instinctively what's at stake here. Marriage has meant one man and one woman in every successful nation on Earth since the beginning of mankind. Marriage is about propagating not just the human race, but also the values of a society, the difference between right and wrong.

By promoting social order, it creates a safety zone for the man and woman involved as well as for their children. A raft of social science research shows that children who grow up in households where the mother and father are married have the best chance at a good life. They earn more, learn more, get in trouble less and have fewer problems with drugs, alcohol or abuse.

Unfortunately, many of the senators ready to debate the amendment this week do not understand its importance. Thanks to the efforts of Sens. Wayne Allard, R-Colo., Sam Brownback, R-Kan., and Zell Miller, D-Ga., and their co-sponsors, senators at least will get the facts, and will be forced to take a stand on whether or not they believe the issue is even worth debating.

Many senators say they oppose same-sex marriage, but don't see the purpose in an amendment. Perhaps these senators are just afraid to take a stand. But when a few activists judges around the nation are determined to redefine this most basic of human institutions through court decisions which thwart the will of the people, our elected officials must take a stand on whether or not they believe voters should determine this issue for themselves. Unfortunately, we've now reached the time where the only way ? I repeat ? the only way to protect marriage and civil society as we know it is to pass a constitutional amendment defining marriage as a union between one man and one woman.

Redefining marriage ? the most basic of human institutions ? is akin to reprogramming the DNA of a nation. This week is a crucial one in who will determine our future.