Software companies are claiming huge gains in test scores in schools because of their computer programs. But is there evidence to back this up? Baltimore Sun reporter Alec MacGillis, recently investigated the use of technology in schools. MacGillis says that No Child Left Behind gave schools more leeway to spend federal money on technology, but that in many cases the software products are unproven and the glowing claims are questionable. Hear MacGillis and NPR's Renee Montagne.