U.S. policy on drug trafficking is not consistent with the need to put an end and actively repress the consumption of drugs. The solution is not based on the destruction of a native plant, coca, in the continent, but on an active fight against the Colombian drug mafia, which has created a great money and crime empire in Colombia with powerful ramifications outside its borders.
The solution is not based on an active fight against the Colombian drug mafia. 
( z1 base :polarity - :ARG1 ( z2 solve ) :ARG2 ( z3 fight :ARG1 ( z4 criminal-organization :name ( z5 name :op "Mafia" ) :mod ( z6 country :name ( z7 name :op "Colombia" ) ) :mod ( z8 drug ) ) :ARG1-of ( z9 activity ) ) )