He's pointing out the obvious. Who actually believes the drug war isn't lost? What other business accepts a 10% interdiciton 'success' rate as a success?
Me... nor do I believe the cultural war and the war on terror are lost, all those other nasty little things that have to be waged to keep civilization civilized. If you don't want to fight for civilization, you can shut up and get out of the way for those that will. It's that simple.
Who uses interdiction rate as a measure of success? What if we tripled our interdiction rate yet drug use doubled. Would you call the program a success?