Well, a number of questions remain about the response to these deadly wildfires.

Let's look at some of those now with Juliet Kayam, a former assistant secretary at the Department of Homeland Security, now at the Harvard Kennedy School.

Juliet, let's talk about some of the conversation and questions around water usage first.

You heard Stephanie Syre reporting there about these moments when hydrants were going

dry, just as firefighters were trying to use them to fight the flames. What do we know about the

municipal water system, about the role it's meant to play in these efforts, and what happened here?

So what we know is that no city is built for a municipal water system to deliver assistance during what's essentially a wildland fire.

This is the challenge that Los Angeles is facing now.

You have a wooie.

It's called wildland urban interface.

The best way to fight a wildland fire is by using helicopters and dropping water on it. We don't have that

capacity now because of the winds and because you're in populated areas. So they're essentially doing

hand-to-hand combat. The sort of metropolitan municipal water system is not built for that kind of

capacity. So basically what happened is there's enough water.

This has nothing to do with the supply of water.

It has to do with the pressure in the system.

Everyone was grabbing it at the same time.

So it's not able to refill.

And that is why you heard about, well, there was no water in the hydrants.

Actually, there was water.

There wasn't enough pressure to deliver that water to hilly areas like why you heard about, well, there was no water in the hydrants. Actually, there was water.

There wasn't enough pressure to deliver that water to hilly areas like the Pacific Palisades,

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