Despite carrying out detailed surveys before buying it, Mr Zennstrom claims major defects were only discovered later.

BBC: Niklas Zennstroem

Cambridgeshire County Council said its original contractor had left the route from St Ives to Cambridge with a number of "major defects".

BBC: Guided bus wheel

"Overall, we found no evidence that service in the Gulf is linked to fathering children with most major defects and this will be reassuring to veterans and their families, " said Dr Pat Doyle, who led the study.

BBC: There were differences in miscarriage rates

Folic acid can help pregnant women prevent major birth defects.

CNN: Half of Americans use supplements