PODCAST: Implementing Chip and PIN; 25th Anniversary of Tiananmen Square

A shopping cart sits in the parking lot of a Sam's Club store

More on Mel Watt, the man behind the Federal Housing Finance Agency, and overseer of Fannie Mae and Freddie Mac. Plus, with Sam's Club offering the country's first Chip and PIN credit cards, a look at the barriers to switching to the more secure technology. Last up, on the 25th anniversary of Tiananmen Square, a conversation about the blue collar workers who joined the protests and why they were there in the first place.

About the author

Mark Garrison is a reporter and substitute host for Marketplace, based in New York.

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