Dolores Huerta runs on righteous ferocity the way cars run on gasoline. The woman who co-founded the United Farm Workers union 50 years ago with Cesar Chavez has harried, prodded, hectored, rallied and protested. She's been arrested more than a score of times, and once, picketing in San Francisco, she was beaten so badly by a police officer that her spleen was ruptured. You'd be hard-pressed to tell, the way she bounces around the Central Valley, a woman on many missions. So, can she stand still next week in Washington long enough for President Obama to present her with the Medal of Freedom, along with honorees such as Toni Morrison, John Glenn and Bob Dylan? Sí, se puede.