Just an add on note, I grabbed this from CNN-
"Turner said the devices have been in place for two or three weeks in Boston; New York City; Los Angeles, California; Chicago, Illinois; Atlanta, Georgia; Seattle, Washington; Portland, Oregon; Austin, Texas; San Francisco, California; and Philadelphia, Pennsylvania.
However, only in Boston did the light boards create such a furor. In Seattle and several suburbs, the signs were removed without fuss, according to The Associated Press."
and..
"It had a very sinister appearance," Coakley told reporters. "It had a battery behind it, and wires."
He also should have added "and a little cartoon character giving the finger"

"Turner said the devices have been in place for two or three weeks in Boston; New York City; Los Angeles, California; Chicago, Illinois; Atlanta, Georgia; Seattle, Washington; Portland, Oregon; Austin, Texas; San Francisco, California; and Philadelphia, Pennsylvania.
However, only in Boston did the light boards create such a furor. In Seattle and several suburbs, the signs were removed without fuss, according to The Associated Press."
and..
"It had a very sinister appearance," Coakley told reporters. "It had a battery behind it, and wires."
He also should have added "and a little cartoon character giving the finger"