7 things to know now: Secret 9/11 info; Sean Payton on guns; Led Zeppelin on 'Stairway to Heaven'

Here's a roundup of news trending across the nation and world today.

What to know now:

1. 9/11 information:  What is in 28 pages of information about the 9/11 attacks that has been locked in a vault under the U.S.  Capitol for 13 years? That's the question people want President Barack Obama to answer before he heads to the Middle East next week. According to former Florida Sen. Bob Graham, the document lays out a network of people he believes helped the hijackers find housing and enroll in flight school in America. Graham, who co-chaired the joint congressional inquiry in the attacks, spoke to Steve Kroft of  "60 Minutes" who broke the story.

2. Navy officer charged: A U.S. Navy officer has been charged with espionage, accused of spying for Taiwan. The accused man, Lt. Cmdr. Edward Lin, was assigned to the Pentagon and had access to the Navy’s plans for spending on weapons and personnel. Investigators believe that was when Lin began stealing information. He was transferred to Hawaii where he had more access to sensitive information and allegedly passed that information on to  "representatives of a foreign government."  Lin has been held in the brig since September.

3. Facing a trial: A federal judge ruled last week that a trial is needed to determine if the famous opening notes of Led Zeppelin's "Stairway to Heaven" was copied from the song "Taurus" by the band Spirit. The judge agreed that lawyers for the trustee of late Spirit guitarist Randy Wolfe had shown enough evidence to support a case that "Stairway to Heaven" copies music from "Taurus." "Taurus" was written in 1967. "Stairway to Heaven" was written in 1971.

4. Others charged: Two more men have been charged with crimes relating to the bombings at the Brussels airport and metro station. The two are charged with renting an apartment the attackers used as a hideout.

5. Saints coach on guns: New Orleans Saints coach Sean Payton told USA Today that he hates guns and "can't wrap my brain around" why people think everyone needs a gun. Payton was speaking three days after the shooting death of Will Smith, a former player. "I've heard people argue that everybody needs a gun," he said. "That's madness. I know there are many kids who grow up in a" hunting environment. I get that. But there are places, like England, where even the cops don't have guns."

And one more

Today marks "Equal Pay Day," or how far into 2016 women must work to earn the same amount as men did in 2015. In the United States, women are paid approximately 79 cents for every dollar men are paid.  For African American women the number is 60 cents; for Latinas 55 cents. In Washington, President Obama will designate a new national monument to honor the movement for women's equality. 

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What to know now:

 A U.S. Navy officer has been charged with espionage, accused of spying for Taiwan and, maybe,  China. Lt. Cmdr. Edward Lin was  assigned to the Pentagon and had access to the Navy's plans for spending on weapons and personnel. Investigators believe that was when Lin began stealing information and funneling it to sources in Taiwan. He was transferred to Hawaii where he had more access to sensitive information and allegedly passed that information on to  "representatives of a foreign government."  Lin has been held in the brig since September.

Facing a trial: A federal judge ruled last week that a trial is needed to determine if the famous opening notes of Led Zeppelin's "Stairway to Heaven" was copied from the song "Taurus" by the band Spirit. The judge agreed that lawyers for the trustee of late Spirit guitarist Randy Wolfe had shown enough evidence to support a case that "Stairway to Heaven" copies music from "Taurus." "Taurus" was written in 1967. "Stairway to Heaven" was written in 1971.

Saints coach on guns: New Orleans Saints coach Sean Payton told USA Today that he hates guns and "can't wrap my brain around" why people think everyone needs a gun. Payton was speaking three days after the shooting death of Will Smith, a former player. "I've heard people argue that everybody needs a gun," he said. "That's madness. I know there are many kids who grow up in a" hunting environment. I get that. But there are places, like England, where even the cops don't have guns."

Today marks "Equal Pay Day," or how far into this year women must work to earn the same amount as men did in 2015. In the United States, women are paid approximately 79 cents for every dollar men are paid.  For African American women the number is 60 cents; for Latinas 55 cents. 

Cox Media Group