It turned out to be a false alarm.
"Cambridge considers nanotech curbs" it said in a story that was scary enough to be reported on Small Times. Then the news got really worrying. "The Cambridge City Council is considering a law to regulate the use of super-small nanoparticles in research and manufacturing."
What a let down. The next sentence reveals that flatlanders have not come out in sympathy with the nearby turkeys with a nasty dose of nanoflu. "If the council decides to act, it will make Cambridge the second city in the United States, after Berkeley, Calif., to regulate nanotechnology." So it was the other Cambridge and the original repot was in the Boston Globe.
You understand that sort of thing from the West Coast weirdos but you don't expect it of the Boston region. It is most unlikely that the real Cambridge will travel down the same road. They are more likely to worry about parking and all those bikes.