Good evening, ladies and gentlemen. We are ( 6 ) _____ today to have Professor Hans Anderson from Harvard University as our guest . Professor Anderson is a world-famous expert on computer hacking , and often advises governments on how to ( 7 ) _______ their computer systems from hackers. He has published many books and articles on computer use and ( 8 ) _______ , and though he is a first-class scholar, he is (9)_________ popular with young audiences. His topic today is " New Threats to Security in Today's World". After his speech you'll have time for questions. I'm sure he'll (10) ______ your interest in this topic. And now, Professor Anderson, please!