CNN News:美国海军总部大楼发生枪击案

We, the people of the United States,

in order to form a more perfect union.

To establish justice, ensure domestic tranquility.

And provide for the common defense ...

Promote the general welfare.

And to secure the blessings of liberty to ourselves and our prosperity.

To ordain and establish thisConstitution.

For the United State of America.

We constitutionally ...

Back to you, Carl.

Well, to those students in Michigan at St.John, the Evangelist Catholic School.

They added a perfect preamble to today's show.

We're going to have more on the Constitution in just a few minutes.

First of all, we're reporting on the shooting in Washington.

At 8:20 yesterday morning, shots were fired inside the Washington Navy Yard.

This is the U.S. Navy's oldest land establishment, and its largest system command facility.

It's also a workplace for 3,000 members of the military and civilian contractors.

As the story unfolded yesterday, authority said a suspected shooter was dead, he wasidentified as Aaron Alexis, a 34-year old Lt.military contractor.

Police said one other gunman could be on the loose.

It was unclear why the shooting happened.

Emergency personnel, the FBI, U.S. Capitol Police and D.C. Police, all responded to the attack.

A team of special agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives was alsosent to the scene, that's the same group that helped capture the Boston Marathon Bombingsuspect.

Nearby government buildings went in the lockdown, so did several schools in the area.

Official said at least 12 people were killed in the shooting, another 12 were injured.

A spokeswoman at a Washington hospital said three victims who were taken to that facility areexpected to make full recoveries.

Next story today is out in Colorado.

The city of Boulder just set a new record for annual precipitation.

The thing is, there are still 3.5 months left in the year.

The flooding in Colorado has been devastating.

Yesterday, more than 1,000 people who'd been cut off were waiting to be rescued.

Authorities were talking about dropping in food and water to keep them going.

One person said, there are no rivers where there have never been rivers or even water before.

He described the situation as surreal.

What to grab, where to go-total chaos and confusion.

We've never seen anything like this. This is just mind-boggling.

We have lost all accessibility to getting out of our homes as the roads have collapsed.

It fell like I was in a literally, a horror movie. I felt like there was no way out.

Is this legit?

Sarin is a chemical compound.

It's true. Sarin can be used as a chemical weapon. The word comes from the names ofscientists who invented it.