Why does America support terrorism to fight terrorism??

There is a lot of truth in your question. Problem politics and changing foreign policy. Foreign policy is the sole responsiblity of the President, thus changed every four to eight years with change in president and cabinet. New on the job and having limited access they bring new ideas to the table, and off we go with some new policies??? Some of the problem could be eliminated,maybe, if a commitee in congress shared forming foreign policy and any policy or change would have to be approved by the committee. How about Commitee of foreign affairs?? Whatever it seems apparent there are problems.