Police officers arrest American actress Daryl Hannah during a protest against the construction of the Keystone XL pipeline, outside the White House in Washington, DC, August 30, 2011. Hannah was among dozens of protestors arrested in a demonstration against the oil pipeline which, if constructed, would run from Alberta’s oilsands in Canada to Texas. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)