A lot of people who read about the epidemic of cell phones in Texas prisons had a basic question -- if you can't discover and confiscate the things, why not just block them? Set it up to jam transmissions in the prison?It turns out TDCJ has thought about that, but it's easier said than done.The prison system found that out Monday when a test of a long-planned test of a jamming system was canceled.We had talked to a retired guard who had predicted the test would be aborted because giant cell phon
