Onethird of the worlds arable land may be destroyed by the end of this century. More change. and at accelerating rates. is the only certainty. Everything is changing. except the orthodoxies which shape attitudes and policies in America. In America. the frontiers are long gone. Our cities are aging and crowded. the environment expensive to protect. Cheap labor comes only with foreign immigrants and refugees we no longer welcome. The United States. although advantaged still. is dependent like other nations on expensive foreign sources of the most essential materials. including oil. In the aftermath of World War II. we were not hesitant before large challenges.
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immigrants refugees