WHAT has been dubbed the countrys largest ecstasy laboratory was situated only 400 meters from the busy Jalan Raya Karawaci, Tangerang. Despite this, the laboratory, which had been operating for two years, was only busted by police on Monday of last week. The raid was based on information supplied by Ang Kiem Soei, believed to be the owner of the laboratory. Ang had been arrested by police at the Hotel Borobudur, Jakarta, on Saturday two weeks ag