On yesterday’s episode of Sway, the chief executive of Mastercard spoke about why the company blocked subscription payments on Pornhub. Was it too little too late? Kara asks Nicholas Kristof, the journalist whose reporting on child pornography forced the payment company’s hand.

You can find transcripts (posted midday) and more information for all episodes at nytimes.com/sway, and you can find Kara on Twitter @karaswisher.

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