Bill Clinton tried it in college — but didn't inhale.

Barack Obama inhaled.

"Frequently," he once quipped. "That was the point."

Bob Dylan sang about it: "Everybody must get stoned."

Weed, pot, grass, doobie, Mary Jane – whatever you call it, there is no mistaking the pungent smell of burning joints or their impact on California culture for decades.

But Gov. Arnold Schwarzenegger opened a new front for discussion this week, saying that while it's not time to legalize pot, he's willing to talk about it as a revenue-raising measure.

The off-the-cuff remark by the well-known governor of the nation's largest state has sparked fresh debate about whether societal attitudes are shifting as 1960s hippies move beyond middle age.

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