An imprisoned opponent, dire economic conditions, and ongoing tensions with the United States all pose challenges to President Erdogan’s increasingly erratic leadership.

Members of Egypt’s jihadi movement played important roles in inspiring and plotting the 9/11 attacks. Egypt still struggles with some of the factors that gave rise to such extremism.

Reducing global emissions of methane, a powerful greenhouse gas, could provide one quick win in the fight against climate change.

Tensions over Israeli treatment of Palestinians in Jerusalem have spurred the worst violence between the two sides in years, but the eruption seems unlikely to prompt a strong international reaction…

Any sharp drawdown of U.S. forces in Iraq grants Iran a golden opportunity to expand its influence there and threatens to inflame sectarian tensions.