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On your mark. Yes, sir.

We're back in the nation's

favorite tent. Let's do this.

And it's packed with a fresh batch of famous faces.

As long as it's edible, I'd be happy.

Do you talk, trying my teeth.

How can it be?

The great celebrity baker for Stand Up to Cancer on Channel 4.

Stream now.

Next on lectures in history. Wogford College Professor Mark Burns teaches a class about U.S. public opinion, the rise of radio as a national media, and the debate about whether to enter World War II.

He outlines the arguments both for and against intervention and uses radio clips to demonstrate the role it played in shaping American views and foreign policy.

All right. So last week we talked about coming of the war in Europe and coming to the war in Asia.

So what I'd like to talk about today is the American reaction to all of that,

what's called the Great Debate over American involvement in World War II.

This is arguably the most important debate on foreign policy in all of American history.

And public opinion, probably more than any previous debate mattered here, in part because for the first time, there was a way of gauging public opinion.

The Gallup poll organization had begun regularly polling the American people.

And so leaders had a much better sense, a much more direct sense of what the people actually thought.

...