Okay, go to YouTube (there is a link to the relevant page at post 36) and look at the lighted signs being assembled, and put up. Then go to the copy of the FOX News report, and look at the sign with the exposed battery case.
The reason the battery case is exposed in the FOX footage is someone took the housing off! (The housing--if you didn't see it, watch the assembly footage again, and look at them as they are being put up.) The way they were put up they did not have exposed wires or exposed battery cases, and the lights looked steady, except in one shot which I think was a video effect or a defective switch on the sign. They were rectangular flat panels with their circuits hidden, and lots of LED's.
They DID NOT look like the standard popular conception of a bomb.
I still like the LED getting misread as IED hypothesis.
Well, they were "found" during the daylight hours. In daylight they turn themselves off. So the LEDs really weren't an issue, were they?
Not at all. It's amazing how everyone just follows the media account of this like it is doctrine. They are not "devices", they are lighted signs, and they were not placed with the intention or knowledge that they create a bomb scare. People need to look at the signs and use common sense on this one.