Protestors gather and march from San Francisco's Alta Plaza Park to demonstrate against Kestone Pipeline while President Barack Obama is in the city Wednesday March 3, 2013. (AP Phot

 

              Protestors gather and march from San Francisco
Protestors gather and march from San Francisco's Alta Plaza Park to demonstrate against Kestone Pipeline while President Barack Obama is in the city Wednesday March 3, 2013. (AP Photo/The San Francisco Examiner, Anna Latino )