Originally Posted by
peter we
The contract didn't specify a requirement for cat and trap, at that time or in future.
"for, but not with" was invented by some politician.
Remember the Typhoon gun fiasco - not required to save money. But it would cost more to design it out. So leave the design and fit ballast. But it would cost more to design ballast. So fit a gun as ballast but not pay for a support system.