Strange mail sent to WSJ

A suspicious white powder was mailed to The Wall Street Journal's New York headquarters yesterday and it prompted a partial evacuation, according to reports from the paper.
The story says that police determined the powder, "wasn't hazardous and was probably flour or a food-based substance."
The FBI plans to continue examining the mailing. They suspect they could be linked to a similar mailing sent to Harvard Law School professor Alan Dershowitz.
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