Oliver North was sworn in by Senator Inouye. 

Oliver North testified that he had authority and approval from his
superiors for all his activities. North maintained that he assumed
presidential approval, but did not ever receive direct approval from
President Reagan.

North was questioned about shredding and falsifying documents. He
also was questioned about soliciting donations for the contras from third
world countries. North contradicted testimony from Robert McFarlane that
McFarlane told NSC staff not to solicit aid from foreign countries or
private sources.