How many newspapers nowadays assign a senior reporter to spend a year conducting hundreds of people across their home state and across the country on an issue as "esoteric" as indoor air quality? Not many, and chances are that even a reputable a paper as the Journal-Constitution might have balked at the notion were it not for the Kaiser Family Foundation's having underwritten the effort. That said, reporter Andy Miller's Sunday-Monday report on indoor air pollution -- "the environmental problem," as one Stanford University engineering professor and former EPA scientist calls it -- offers worthwhile insights to an issue the media too often tire of right out-the-door. He reports on a "vacuum" in which no federal agency has broad authority to regulate indoor air and says it is up to "employers, landlords, school systems, and public health agencies" to field the increasing volume of complaints and concerns. With research on indoor environment "still developing," Miller reports that experts "find it difficult to prove a link between an indoor contaminant and illness," but public concerns mount all the same. He reports that legislation to address mold has been introduced in 17 states and points to related concerns over central nervous system effects, dizziness, fatigue, and concentration problems.