2015 Event Concerns over security in the Asia-Pacific region are raised after a U.S. surveillance flight identifies artillery on one of the man-made islands under development by China in the South China Sea 2014 Event Microsoft identifies a security issue in Internet Explorer that can allow hackers to take control of personal computers using the browser; the flaw affects versions 6 to 11 of the software 2011 Event An archeologist using Google Maps identifies 2,000 potential archeological sites in Saudi Arabia 1979 Event British government identifies Sir Anthony Blunt as 4th man in Soviet spy ring 1923 Event Edwin Hubble identifies Cepheid variable star
