News At Seven-Thirty highlights:Drainage worker drowned in manhole during morning rainstorm;Government defends housing policy after mainland official praises Macau’s progress;Greek cabinet reshuffle fails to calm fears of default.  Talk of Lehman effect;Court releases transcript of Strauss-Kahn discussions with police;Hamburger patties recalled after children in France are hospitalised with E.coli;British woman gets 8-month jail sentence for contacting defendant;No gas deal signing between Russia and China today;Tsunami amateur video surfaces;To Kwa Wan building reopens after deadly fire;Environmental groups oppose construction of a third runway at the airport;99-year-old in U.S. earns college degree.