The homeland security chief said on Sunday a deal for a Dubai-based company to manage major U.S. ports would include security safeguards, but a Republican senator urged a probe and called the Bush administration “tone deaf politically” for approving it. Homeland Security Secretary Michael Chertoff said the Bush administration had approved the sale of British firm P&O, which manages six U.S. ports including New York, to Dubai Ports World after a classified review and the deal would include safeguards to protect U.S. national security. “You can be assured that before a deal is approved we put safeguards in place, assurances in place, that make everybody comfortable that we are where we need to be from a national security viewpoint,” Chertoff said on ABC’s “This Week with George Stephanopoulos.” Full Story