Feb. 2 (UPI) -- China executed another four people Monday for murder, kidnapping and drugs and sex trafficking offenses as part of a campaign tackling online scam centers in neighboring Myanmar manned by a captive workforce of modern-day slaves, including thousands of Chinese citizens. The four, all leading members of the Bai mafia gang, were executed Monday in Guangdong after the province's High People's Court and Supreme People's Court rejected their appeal against death sentences handed down