Even before the Petraeus scandal widened, General John Allen's time as top US and NATO commander in Afghanistan was winding down. Last month, President Obama nominated General Joseph Dunford to replace Allen.
The Petraeus scandal offers insights into the security of online communication and the media's access to military officials, says Zeynep Tufekci a visiting scholar at Princeton University's Center for Information Technology Policy.
Afghan President Hamid Karzai is visiting Washington this week for talks with President Barack Obama over the future of his country once the US and NATO pull out most of their troops by the end of 2014.
Former US Ambassador Ryan Crocker, the man who says he's been called "a crisis junkie" shares some of his personal thoughts with anchor Marco Werman on why American diplomats need to serve in conflict zones.
U.S. officials are trying to come to terms with the rise in so-called green-on-blue, Afghan on NATO, attacks lately. Some experts suspect a rise in PTSD among Afghan soldiers may be a cause of the violence.
Pope John Paul II was officially declared a a saint just over a week ago. He canonized more saints than any previous pope. Reporter Angelica Marin, who has a saint in her family, makes clear just what it takes to become a saint.
A growing number of high-ranking American officials say that ISIS, the militant group that controls much of northern Iraq, must be defeated. The White House is considering plans to send ground troops to aid Iraq in the fight, but experts say even those expanded plans won't be enough to win.
Questions are being raised about whether Pope Benedict was personally involved in covering up a case of child sex abuse by a Roman Catholic priest. Marco Werman talks with John Allen of the National Catholic Reporter.