 In April 2016 , Phua caused widespread controversy when , during a debate on the Ministry of Home Affairs ' budget in Parliament , she suggested the installation of fences at communal areas in Little India , like playgrounds , to prevent the congregation of foreign workers there and to allow residents to use the facilities away from them . " Congregations of such high density are walking time @-@ bombs and public disorder incidents waiting to happen , " she remarked . She apologised two days later . 
