Surely, you understand why they did this? There is a perfectly good
     rationale for running these kind of operations. It's just that
     you're
     miffed about the fact that you're not able to do anything about it.
     So if you're part of some impotent government that does not know how
     to,
     or wants to project power, instantly you're at the mercy of
     institutions
     of governments that can. No amount of tree-hugging or moral high
     ground
     is going to save you from extinction.
     And it's not all that bad. It's mostly power-play and politics
     really.
     >
     >
     [1]https://en.wikipedia.org/wiki/CIA_involvement_in_Contra_cocaine_t
     rafficking
     >
     > "Once you set up a covert operation to supply arms and money, it's
     > very difficult to separate it from the kind of people who are
     involved

   ​Do you claim to understand why the Reagan administration "did this"
   operation which eventually came to be known as Iran-Contra?
   If so, then you can explain how "blocking the fall of [soviet]
   dominoes" directly correlates to the distribution of drugs in specific
   Black-American communities.​
   ​You can in hindsight claim to agree with the end goal of "blocking
   Communism" however, in hindsight, you would be lambasted as failing to
   see through the Administration's propaganda.
   Still claiming to support the means to that end, squarely puts you in
   the realm of the Abusers of Power.
   Abuse because the voting population never had any chance to understand
   what was being done in their name.
   This is the cycle of Power Abuse which has many in the world turned
   against the US (and increasingly its people not just government).  As
   long as the (secret) three-letter agencies conduct (secret) operations
   using (secret) means and continue to be governed with (secret) mandates
   driven by an administration's (secret) beliefs without Transparent and
   Democratic oversight this trend will continue until its logical
   conclusion.  Sadly.

References

   1. https://en.wikipedia.org/wiki/CIA_involvement_in_Contra_cocaine_trafficking