The Center for Disease Control and Prevention's Tanja Popovic downplay the risks of any long-term health effects from chemicals in the water.

疾病预防控制中心的塔尼娅·波波维奇淡化了水源中的化学品对长期健康影响的危险。

Srdja Popovic one of the founders of the Otpor movement which played a key part in seeing off Milosevic in Serbia, argues that change happens as a result of careful planning, enthusiasm and importantly humour.

他在书中说，改变是精心策划、热心和幽默的结果，其中幽默很重要。