At Mountain Lake Public Broadcasting in upstate New York, Alice Recore put $1.2 million into reinforcing and preparing WCFE’s 30-year-old tower for the DTV age. Across the continent at KSPS in Spokane, Wash., Bob Wyatt assiduously maintained and upgraded the station’s 40-year-old tower. But that wasn’t enough in either case. Both towers suffered catastrophic collapses within the past year, at costs that are still mounting. Theoretically, towers don’t have to fail.