This is a follow up to our last report based on a tip sent to us by a viewer who wanted to know how it was okay that the largest elementary school in Dallas put up a giant cell phone tower right on the basketball court next to the playground.
After we released the video, lots of people sent us tips from one side of the nation to the other.
These cell towers are being placed on school property — next to even preschool playgrounds and sometimes directly on the rooftops of the schools themselves — all over America.
Why?