The US State Department has approved the possible sale to Saudi Arabia of $5.4 billion in additional PAC-3 missiles built by Lockheed Martin Corp , the Pentagon said on Wednesday. The Defense Security Cooperation Agency said the sale would benefit a key US partner in the Middle East. Notification to Congress was sent on Tuesday and follows a major nuclear deal with Iran. The missile sale approval could help reassure Saudi Arabia about the US commitment to its security. http://english.ahram.org.eg/News/136530.aspx