Government? Lying As Usual

SEE HERE I remember rather clearly the heat that president Eisenhower took for lying about the Gary Powers U2 flyover of Russia.  The media gave him hell for lying to the American people about the flyover despite the fact that he was following the advice of the CIA people who had told him that the pilot was dead and it was better to deny any intentional overflight and make much of the alleged shoot down.  Today these many years later it seems to have become government policy to lie about almost everything, to evade responsibility and to blame others.  When exactly did we lose our bearings and become congenital liars?