Four persons, comprising three Singaporeans and one Indian national, were charged by the Immigration and Checkpoints Authority (ICA) on Thursday (July 30).They are accused of harbouring and employing immigration offenders, the authority said in a news release on the same day.Overstayed for over 13 yearsSingaporeans Thomas Lee Kum Chuen, 58, and 76-year-old Foo Cher Fatt were charged in relation to...