This is the web site for Sam Harris. The following is a quote from "http://en.wikipedia.org/wiki/Sam_Harris_(author) as of 1/29/2013 (footnotes omitted):
Sam Harris (born 1967) is an American author, philosopher, public intellectual, and neuroscientist, as well as the co-founder and CEO of Project Reason. He is the author of The End of Faith, which was published in 2004 and appeared on The New York Times best seller list for 33 weeks. The book also won the PEN/Martha Albrand Award for First Nonfiction in 2005. In 2006, Harris published the book Letter to a Christian Nation, a response to criticism of The End of Faith. This work was followed by The Moral Landscape published in 2010, his long-form essay Lying in 2011 and the short book Free Will in 2012.
Harris is a well-known contemporary critic of religion and proponent of scientific skepticism and the "New Atheism". He is also an advocate for the separation of church and state, freedom of religion, and the liberty to criticize religion. Harris has written numerous articles for The Huffington Post, Los Angeles Times, The Washington Post, The New York Times, Newsweek, and the journal Nature. His articles touch upon a diversity of topics, including religion, morality, neuroscience, free will, and terrorism.
The Wikipedia link referenced above is a good description of who he is, his books, lectures, and his critics.
I recommend that you go to YouTube and search for "sam harris debate".
While I do not always agree with him, he is very good at addressing difficult issues.
see: www.samharris.org
Enjoy!