One of America's abiding myths has been that a citizen's individual income tax return is a confidential matter. Even Democratic National Chairman Lawrence O'Brien thought so, and he should know better. Two weeks ago, O'Brien, who was John Kennedy's congressional liaison, and Mortimer M. Caplin, J.F.K.'s Commissioner of Internal Revenue, piously deplored White House Investigator Clark Mollenhoff's seemingly unlimited access to individual tax returns. Illegal, huffed O'Brien. Unless President Nixon withdraws Mollenhoff's snooping privileges, they warned, "We are prepared to initiate legal action."
It would have to be a legal broadside, for the fact is that hundreds of state and federal officials...