Gathering information helps someone consider to solve a problem.

nigger, that word was originated for white folks   to keep black people under

and when black people use it, they know that's just how they greet each other

and when white folks use it, they know there's a double meaning under

answer; protecting domestic national security; i believe this is correct,plz check first,good luck;

answer; direct observation;

answer; black& white dialogue;