In the Midwest (Iowa, etc.), we get plenty of storms, mostly Winter, and power lines go down frequently. Someone is about to build a new high-power transmission line across my County (and too near my property!!), and I can't figure out why it is not mandatory in the 21st Century that all electrical lines, regular and high-power, be buried underground. It's been suggested that the factor is cost, but how can a large buried conduit be more expensive than towers and lines and guywires and thousands of insulators, etc. etc.???? Once buried, and using modern materials, no ice nor wind nor tornado will interfere; no "stray voltage" or other real or imagined health risk will escape; and, best of all, no ugliness will scar my fine prairie view. Any good reasons, engineering-wise? Thanks!!