From New York Times, I'm Michael Barbaro. This is The Daily.

A few days ago, when passengers set off on a deep sea expedition in the Atlantic Ocean,

they were on board a vessel that many experts had already concluded was dangerously designed.

One of those experts who was worried from the start is my colleague, Bill Broad.

It's Thursday, June 22.

Bill when this submersible vessel went missing a couple of days ago, we all thought of you

because very few people know the world of deep sea exploration as well as you do.

So just to start, can you explain how and why you do know this world as well as you do?

Sure. I'm a deep sea lover. It's a beautiful world. It started about 30 years ago.

When I went down on a submersible dive on Alvin, which is a famous little three person submersible run by the WIDSHOLE oceanographic

institution, and it blew my mind. I learned so much.

It was so interesting that I just kept going. I went on other dives. I became a scuba diver.

It's just this amazing world and I adore it.

Can you just tell us what it's like to go that deep underwater on one of these vessels?

I mean, just describe it. What about it? It sounds like addictive for you.

Yes. We went down, down, down, a mile and a half and the daylight faded and it was incredibly dark.

And you're in this cramped little sphere with two other people peering through this little porthole, which was about seven inches thick

because it's withstanding the incredible growing pressure as you go down deeper and deeper.

And you are taken into another world. It is surprising in so many different ways. It blew my mind.

There were all these gelatinous creatures that would light up as the bow wave of the submersible, you know, went out.

And you'd see ripples of light going down their body. It was like falling through a field of stars.

Our backyard is filled with aliens, amazing creatures, you know, some of them like gelatinous things that are 60 feet long and you touch them and they start to light up.

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