But the problem extends further. And if you ask the couple what they get for their taxes, Mr Carson responds: "Absolutely nothing."
They have sought help in all corners of the government. The police, who will be taking a formal criminal complaint from the Carsons this month, didn't get in touch nine months ago even though instructed to do so by their minister.
"We've got the Prime Minister who can't even get the year right."
Defence Minister Jonathan Coleman misinformed the couple over the health and safety investigation. The Civil Aviation Authority did not recognise an agreement it had to help resolve confusion over such issues.
The Carsons still want an inquiry. Mr Carson said the investigation needed to be started from the beginning. "It has left the military a hell of a lot of time to cover up what they want to."