Stephen Hawking pulls out of President's Conference

British theoretical physicist Stephen Hawking, 71, pulled out of a conference organized by President Shimon Peres, as a protest of Israel's treatment to the Palestinians, The Guardian reported Tuesday overnight.
The fifth President's Conference, which features the tagline "Facing Tomorrow," is set to take place in Israel next month.
Hawking, that chose not to announce his decision to pull out of the conference publicly, wrote a letter to Peres telling the president he decided "to respect the boycott, based upon his knowledge of Palestine, and on the unanimous advice of his own academic contacts there," the Guardian reported.