News at Seven-Thirty highlights: voluntary drug tests at secondary schools under a trial scheme to be introduced this year; results of HKCEE came out today; severe Tropical Storm Goni made landfall in Taishan; North Korea pardoned and freed 2 jailed American journalists; South Korean police have raided an auto plant to end two months of occupation by workers; Corazon Aquino will be laid to rest next to her assassinated husband; an armed man opened fire on a Latin dance class and killed 3 women in U.S.; Obama celebrated birthday by leading White House press corps in singing Happy Birthday to Helen Thomas; a farming town in Qinghai Province was closed off after 12 people contracted the lung infection; about 100 delivery workers for Watsons Water went on strike; Cathay Pacific Airways has returned to profitability in the first half of 2009; a new stamp exhibition opened at City Hall in Central.