On its face, the Waters of the United States rule is largely a technical document, defining which rivers, streams, lakes and marshes fall under the jurisdiction of the Environmental Protection Agency and the Army Corps of Engineers. But opponents condemn it as a massive power grab by Washington, saying it will give bureaucrats carte blanche to swoop in and penalize landowners every time a cow walks through a ditch. . . . "This rule will provide the clarity and certainty businesses and industry need about which waters are protected by the Clean Water Act, and it will ensure polluters who knowingly threaten our waters can be held accountable,” Obama said in a statement after the EPA released a final version of the regulation. “My administration has made historic commitments to clean water, from restoring iconic watersheds like the Chesapeake Bay and the Great Lakes to preserving more than a thousand miles of rivers and other waters for future generations. With today’s rule, we take another step towards protecting the waters that belong to all of us.”Obama's emphasis is on safety and clean water; the rule, however, greatly expands the definition of what waters "belong to us all," including that on privately-owned property.