News at Seven-Thirty highlights: HK’s GDP plunged by 7.8 percent year-on-year; fallout from economic crisis left many industries struggling; Obama called current deficit spending in U.S. is unsustainable; South Korea declared contracts on running an industrial complex with South Korea invalid; Aung San Suu Kyi insisted she didn't violate her house arrest terms; Sri Lankan forces battled to take complete control of the coastline; U.S. Midwest was torn by severe storms; Thai Prime Minister comes to allay fears about Thailand; New York closed 3 schools in response to a potential fluare-up of H1N1; Chinese University finds citizens having misconceptions about H1N1; legal battle over Nina Wang's estate continued in High Court; Consumer Council advises parents to carefully check playgroups before they enroll their children; delegation from Legislative Council set off on a four-day visit to the Pearl River Delta region.