It is more than 23 years since Arab countries last made common cause to join U.S.-led military action, and it has taken the threat of Islamic State to persuade them that any public backlash in an already turbulent region is a price worth paying.
A seemingly unrepentant Suleiman Abu Ghaith, a son-in-law of Osama bin Laden, was sentenced to life in prison on Tuesday in New York following his conviction on terrorism charges.
When Hillary Clinton rubs shoulders with financial executives and philanthropic giants at the Clinton Global Initiative's meeting this week, it will underscore the tension between her elite connections and populist image likely to feature in her expected 2016 presidential campaign.