The affair was investigated by Congress and by the three-person, Reagan-appointed
Tower Commission.
Neither investigation found evidence that President Reagan himself knew of the extent of the multiple programs.[2] Additionally,
U.S. Deputy Attorney General Lawrence Walsh was appointed
independent counsel in December 1986 to investigate possible criminal actions by officials involved in the scheme.
In the end, several dozen administration officials were indicted, including Weinberger. Eleven convictions resulted, some of which were vacated on appeal.[12]
Possibly more could have been done, but politics always seem to get in the way to some extent. I personally believe their intentions were good although the method was flawed.