Americans love using their credit cards, the most secure and hassle-free way to pay.

But DC politicians want to change that with the Durban Marshall Credit Card Bill.

This bill lets corporate megastores pick how your credit card is processed,

allowing them to use untested payment networks that jeopardize your data security and rewards.

Corporate megastores will make more money and you pay the price.

Tell Congress to guard your card because Americans lose when politicians choose. Learn more at

guard your card.com. Hey, what's news listeners. It's Sunday, April 13th. I'm Luke Vargas for the

Wall Street Journal and this is What's News Sunday,

the show where we tackle the big questions about the biggest stories in the news by reaching

out to our colleagues across the newsroom to help explain what's happening in our world.

And this week, as the U.S. and Iran renew talks over Tehran's nuclear program, could we be

at the dawn of a new nuclear arms race?

It's a question surfacing the world over, as countries in Europe, Asia, and the Middle East,

question whether America's nuclear umbrella offers enough protection,

and which is driving some to seek out the protection of others

or consider building their own nukes.

We'll look at who's scoping out new nuclear deterrence, the proliferation risks of a renewed arms race,

and what the process of actually building a nuclear program would look like in 2025.

A little later on, we will be joined by nuclear weapons expert De Debach Doss, to discuss the practical details of going nuclear.

But first, let me introduce journal reporter Lawrence Norman and from the London think tank Chatham House,

senior research fellowed Marian Messmer, an expert in arms control and nuclear weapons policy.

Lawrence, let me start with you, just to set the stage here. Walk us through

...