Inconsiderate behaviour on public transport: Why do some act this way?

In a recent CNA Commentary, Dr William Wan from the Singapore Kindness Movement argued for some regulation in dealing with inconsiderate behaviour on public transport which drew some strong reaction from readers. But why do some people behave badly in a public space? What stops others from confronting them and should more be done? Michelle Tay, director of the Singapore Kindness Movement, and Associate Professor Ho Kong Chong, head of Urban Studies at Yale Nus College are this week's guests.See omnystudio.com/listener for privacy information.