While many are excited to see the planes high in the sky for the Thunder in the Valley Air show, it's also your chance to witness American history on display. This year, a mobile 9/11 memorial is traveling to Columbus and you can witness it firsthand.

Recovery workers who toiled at the World Trade Center disaster site may face a heightened risk of rheumatoid arthritis and similar autoimmune diseases, a new study suggests.

The findings, reported online March 16 in the journal Arthritis & Rheumatology, add to the list of potential health effects seen among responders to the Sept. 11, 2001, attacks in New York City. More.

Matthew David Yarnell, a 26-year-old employee of Fiduciary Trust Company International, has been positively identified as a victim of the Sept. 11, 2001, terrorist attack on the World Trade Center.

The announcement was made on Thursday by the New York City medical examiner’s office, which said the identification was made possible by the retesting of DNA samples obtained from human remains that were recovered in 2001 and 2002. More.

A 9/11 hero has become the first member of the federal agency that regulates guns and alcohol to die from cancer related to the terrorist attack, authorities said Thursday. Special agent William Sheldon Jr. was 47.

Each night at precisely 9:55, the chaplain on the USS New York delivers the evening prayer from the bridge over the ship’s public address system. It’s a long-standing tradition aboard every U.S. Navy warship at sea. The chaplain reviews the day’s events and talks about what may come in the days ahead, while giving thanks and praying for things specific to the crew.

The Department of Homeland Security won't run out of money anytime soon.

The House cleared legislation Tuesday that will keep the agency operating through the end of September after a standoff last week threatened to shutter the agency and furlough thousands of workers. The 257-167 vote sends the bill to President Barack Obama for his signature. More.

“In Our Son’s Name” is an intimate portrait of Phyllis and Orlando Rodríguez, whose son, Greg, died in the World Trade Center on 9/11. The bereaved parents chose reconciliation and nonviolence over vengeance and began a transformative journey that both confirms and challenges their convictions.

As a member of the House Permanent Select Committee on Intelligence, U.S. Rep. Jim Himes is in the room for classified briefings in which U.S. intelligence officers detail the good, the bad and the ugly of terrorism threats both foreign and domestic.

But what keeps Himes awake at night is not so much a spectacular international terrorist attack like 9/11, but the lone-wolf gunman with a legally purchased AK-47 opening fire in a crowd. More.