Al Qaeda's Yemeni franchise, al Qaeda in the Arabian Peninsula, lost two prominent ideological leaders in a U.S. airstrike Sept. 30. This loss will severely hamper the group's outreach to English-speaking Muslims.

Though the most dangerous organizations in Mexico have little motivation to attack during the 2011 Pan American Games in Guadalajara, Mexico, visitors will still encounter some risks.

When we look closely at the history of solitary terrorists, it becomes apparent that there is a significant gap between theory and practice.

Cross-pollination among the various jihadist actors in Pakistan could help facilitate planning and even operations if they pool resources.

The legal team of an accused Sinaloa cartel figure has caused a stir with its claim that the U.S. government cut a deal with the Sinaloa Federation. Though likely false, the claim could still prove useful in his defense.

A lot has changed since al Qaeda's spectacular attacks against the United States in 2001, including the state of the jihadist movement.

There will be important fault lines to watch in the coming months to envision what a post-Gadhafi Libya will become.

Despite their public manifestations of machismo, cartel leaders clearly fear and respect the superpower to the north.

Being alert to developing threats, a key building block of both personal and national security, is a skill anyone can master.

As the threat posed by lone wolf militants adhering to the leaderless-resistance model increases, so does the need for a decentralized line of defense.