"Black and white issue"

If black sheep are incorrect, surely it is at least as incorrect to speak of "black and white issues". Surely such talk could offend minorities! Yet in the selfsame wacky Britain where mentions of black sheep are banned we find a government minister using such "offensive" language. Energy minister Malcolm Wicks, in discussing nuclear power, said: "As the commission itself finds, this is not a black and white issue".

Surely he should have said "This is a rainbow issue"? Here's betting I am starting something here!