A 19-year-old man has been arrested after a parcel containing HK$570,000 (US$72,613) worth of cannabis was airmailed to his Hong Kong home from the United States.The haul was detected at Hong Kong International Airport on Monday after customs officers selected a parcel bound for the suspect’s public housing accommodation in Chai Wan from New York for a routine inspection.Inspector Heung Ping-lung, of the Customs and Excise Department, said on Thursday evening that 3kg of cannabis buds were…