Singaporeans fear they are not voting in secret: MARUAH

Yahoo! News Singapore, 6 Feb 2013
About 10 per cent of Singaporeans who voted in 2011’s general election feared that their votes could be traced back to them, according to local human rights group MARUAH.
This percentage is “greater than the margin of victory in many constituencies in GE2011”, which makes them a “significant minority”, the group stated in the position paper it presented in a media briefing Wednesday.
Specifically, voters were concerned that the use of serial numbers on ballot papers could be a tool for authorities to trace votes. Full story