A Malaysian Immigration officer putting zip-ties on the wrists of suspected illegal foreign workers during an immigration raid operation shortly after midnight in Klang, outside Kuala Lumpur on September 1, 2013. Malaysia began casting a nationwide dragnet early on September 1 over an estimated half a million illegal foreign workers amid a crime wave that has cast the nation's focus on security. Enforcement officers from the immigration headquarters in the administrative capital Putrajaya nabbed 73 in the wee hours of the morning, an official said while awaiting reports from branches across the country.