The house that John High rents with his son in Norman, Okla., doesn’t even have a windowless room he could retreat to in a tornado, he says, and he can’t afford to build a a wheelchair-accessible storm shelter.

The house that John High rents with his son in Norman, Okla., doesn’t even have a windowless room he could retreat to in a tornado, he says, and he can’t afford to build a a wheelchair-accessible storm shelter.