"What we are looking for is those vulnerable spots, but we feel confident that given all of the local law enforcement working with the rail enforcement people that rail is a safe mode of travel, " he said.

CNN: Mineta: System 'safe' and 'secure'

This apparent inconsistency has been the subject of spirited debate in the patent law community, with some people claiming, not at all unreasonably, that the best mode requirement is effectively gone.

FORBES: Patent Reform: Five Things Technology Companies Need to Know

But because of the great work of law enforcement, National Guard, Coast Guard, making sure that folks were out in rescue mode rapidly, even in some cases at risk of their own lives, no lives were lost.

WHITEHOUSE: President Obama Tours Areas Damaged by Hurricane Isaac