In what circumstances, if any, should the national judiciary have the power to declare state laws unconstitutional?

Why did many chinese find communism appealing and it’s early stages

What principle did president truman invoke in sending u. s. troops into south korea without first asking congress to declare war?

Is karma the same as destiny, in the sense that everything that happens to you is predetermined? do you believe that "what goes around comes around," and if so is this the same as karma? does everyone get what they deserve, in the end?