Backgrounder: Experts say more should be done to reduce risk on both passenger and freight rail.

The “war on terrorism” is often portrayed as playing out on the streets of Baghdad or in the mountains of Afghanistan. But New York City is another important battleground and could provide lessons fo…

The U.S. State Department continues to list Cuba as a state sponsor of terror, though most experts say the country no longer poses a threat to U.S. national security.

Iran’s nuclear program is believed to have steadily progressed, despite sharply increased concerns over its intentions and sanctions over its lack of transparency.