

Last night, after a fourth day of protests in the town of Ferguson, Missouri, where police have been tear-gassing citizens protesting the shooting of teenager Michael Brown, the protesters got some solidarity on Twitter $TWTR—all the way from the Middle East.
There was some sympathy from Palestinians, who are experienced in dealing with American-made tear gas, and probably also with the kinds of tactics used by Ferguson police: The town’s former chief of police was trained in Israel.
And there was practical advice on how to handle a tear-gas attack:
This is not the first time the Arab Spring sent its support to demonstrators in the US. In 2011, during the protests against a proposed anti-union bill in Madison, Wisconsin, well-wishers around the globe called a local pizza parlor to order deliveries for the protestors. At least one order reportedly came straight from Cairo.