Where did they say that this was causation? Correlation is enough to make this an interesting article. Does it matter that much if: a) lawmakers who are funde

Where did they say that this was causation? Correlation is enough to make this an interesting article. Does it matter that much if: a) lawmakers who are funded by the defense industry vote in favor of the defense industry or b) lawmakers who vote for the defense industry are kept in office through funds from the defense industry Cause or effect seem to be pretty unpleasant.