WARSAW, Poland (AP) — Renowned Polish-U.S. playwright and screenwriter Janusz Glowacki, who won top prizes for his bitter, ironic analysis of the difficult lives of immigrants, died Saturday at 78. His wife, actress Olena Leonenko-Glowacka, announced his death but its cause was not immediately revealed. Popular in New York and Polish artistic and intellectual circles, Glowacki was the author of award-winning plays "Antigone in New York" and "The Fourth Sister," which set classic themes in the contemporary world.