Robert Ludlum and Cornel West, are authors of which nationality?
Cornel West Cornel Ronald West (born June 2, 1953) is an American philosopher, political activist, social critic, author, public intellectual, and prominent member of the Democratic Socialists of America. West is an outspoken voice in American leftist politics, and as such has been critical of many center-left figures, including President Barack Obama and former Secretary of State and 2016 Democratic Presidential nominee Hillary Clinton. He has held professorships at Harvard University, Princeton University, Yale University, Union Theological Seminary, and the University of Paris during his career. He is also a frequent commentator on politics and social issues in many media outlets.
Robert Wald Robert M. Wald ( ; born June 29, 1947 in New York City) is a physicist who specializes in general relativity and the thermodynamics of black holes. He is the son of the mathematician and statistician Abraham Wald. Wald's parents died in a plane crash when he was three years old. He is the author of a graduate textbook, "General Relativity". Wald is a professor at the Enrico Fermi Institute and the University of Chicago. Wald has taught undergraduate courses across a range of physics topics, and has been honored as a particularly effective teacher.