The issue: Iranian riot police on Wednesday launched a crackdown on black-market currency-trading in Tehran, setting off clashes with money-changers and sparking at least one protest against the government's economic stewardship. The violence followed a precipitous decline in Iran's currency, the rial, whose value dropped 40 percent over the past week alone. Analysts attributed the drop to tough economic sanctions imposed by the U.S. and Europe against Iranian oil, which is the country's largest source of revenue by far. Things have gotten so bad that President Mahmoud Ahmadinejad even went on television earlier this week to publicly beg his countrymen not to trade their rials for other currencies. The sanctions are meant to deter Iran from making progress on its suspected nuclear weapons program, and the Obama administration has urged Israel to give the sanctions time to take effect before taking any military action against the Iranian regime. 

The reaction: Some see Iran's economic problems and the resulting unrest as an indication that the Iranian government is in danger of falling. "This is a regime on the edge," says Andrew Sullivan at The Daily Beast. Indeed, there is evidence that Iranians blame the government for failing to protect the rial, suggesting that it's at least possible that widespread protests against the regime could break out as they did in 2009. However, there is always the possibility that the government — which is really run by a cabal of clerics — could place all the blame on Ahmadinejad. The clerics "have grown increasingly disenchanted with his leadership over the past 18 months and may be looking for a convenient scapegoat," says Scott Neuman at NPR. And don't forget that economic suffering doesn't necessarily cause pariah regimes to change their ways, let alone usher in a revolution. "Other economies have withstood harsher economic pressures in the past and there is no shortage of regimes under sanctions which have survived without changing their course — North Korea, Zimbabwe, and Cuba, to name but a few," says Hassan Hakimian at Britain's The Guardian.

Sources: The Christian Science Monitor, The Daily Beast, The GuardianThe New York Times, NPR