Robert Brinkmann : The first thing to understand is that the US government has been lying about this for years. He says recent law makes it easier for insurers to deny homeowners sinkhole coverage . He says builders are n't required to check for sinkholes , and there are few planning rules . It 's not clear why . Brinkmann : State should rethink regulations and land use , revive sinkhole research institute .
Robert Brinkmann : The first thing to understand is that the US government has been lying about this for years. He says recent law makes it easier for insurers to deny homeowners sinkhole coverage . He says builders are n't required to check for sinkholes , and there are few planning rules . Brinkmann : State should rethink regulations and land use , revive sinkhole research institute .