Tomorrow morning the Supreme Court will be hearing oral arguments that a developer ought to be able to fill a wetland he owns with sand so he can put a shopping mall on it. The U.S. government prohibited such a thing from happening in Michigan over a decade ago, and with two new Bushites on the Court, everyone's holding his/her breath about what's to come. If the Court rules for the developer (actually two different developers), the decision will remove more than half of the nation's streams and wetlands from federal regulation.
In other words, the possible consequences are huge, the court is packed now with guys who lean far right against environmental protections and in favor of business interests, and we may begin to see what REALLY was at stake in the Sam Alito confirmation.
You can read about the legal issues here.