Tough on grime; tough on the causes of grime.
American President Barack Obama declares that as regards environmental pollution, “we shall fight them on the beaches”.
https://www.whitehouse.gov/the-press-office/remarks-president-nation-bp-oil-spill
“Already, this oil spill is the worst environmental disaster America has ever faced. And unlike an earthquake or a hurricane, it’s not a single event that does its damage in a matter of minutes or days. The millions of gallons of oil that have spilled into the Gulf of Mexico are more like an epidemic, one that we will be fighting for months and even years.”
“But make no mistake: We will fight this spill with everything we’ve got for as long as it takes. We will make BP pay for the damage their company has caused. And we will do whatever’s necessary to help the Gulf Coast and its people recover from this tragedy.”