He tells VOA tougher action must follow. "This is am important first step, but it is only a first step,"

VOA: standard.2009.12.09

It must certainly apply to matters of opinion to what we would call today First Amendment issues.

它必须能适用于关乎民意的事件,就像今天的第一修正案事件一样。

耶鲁公开课 - 政治哲学导论课程节选

It is a necessity. He believes that the first priority of any climate bill enacted by Congress must be to put a cap on global warming gases.

VOA: standard.2010.06.14