What drug was once investigated for use as a possible mind control device by the cia in the united states?

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful. 

where's the

the governor can not veto a referendum that the voters approve

i believe its escaped