Now to new revelations involving Defense Secretary Pete Hegeseth.

The Washington Post first reported and the news hour can confirm that Hegeseth had the unclassified messaging app signal installed on a computer in his Pentagon office.

That's after reporting that Hegseth shared highly sensitive and detailed attack plans in a signal group chat last month that included his wife,

brother, and lawyer, in addition to top national security officials hours before a mission

was launched against Houthi forces in Yemen. All of this is unfolding as chaos is mounting at the

Pentagon with the firings of top HegSeth AIDS. We're joined now by Dan Lamoth, who covers the U.S.

military and Pentagon for the Washington Post. Dan, it's great to have you here. So why the special

computer setup? Why is Secretary Hegset finding new ways to use this commercial messaging app

signal on his Pentagon computer?

Absolutely. This speaks to the need and desire that he and other Pentagon officials saw for this

platform in a environment where you simply are not allowed to have your cell phone.

All of these are known as skiffs.

It's basically a compartmented part of the building where

you're not allowed to have personal electronics. So to get around that, they installed a special

line, a separate computer, and basically had a way for him to message from the computer

while still in a classified environment with classified systems right nearby.

So the fact that this app is not part of the secure information sharing architecture

within the Pentagon. I mean, is that an operational breach?

Wouldn't be an operational breach necessarily to just have it, but how you use it matters a great deal here.

He's obviously under scrutiny for posting details about a operation before it occurred in at least two different signal chats.

Those details, what kind of aircraft, what time strikes might occur, what kind of weapons, those are always classified

prior to some sort of attack or strike or operation occurring.

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