Sierra Club: Tangling Itself in the Immigration Debate

A faction in the nation’s oldest environmental group, Sierra Club, argues that to protect the environment the US should keep its numbers down by limiting immigration, saying most of America’s population growth comes from immigrants and their children. Others say that immigration pressures reflect the world’s population problem. And since many immigrants today are Hispanics, the call to lock the gates to foreigners smacks of racism. The Sierra Club is holding a poll on the issue, but already more than a thousand members have walked out in protest. Deirdre Kennedy has more from San Francisco.