His group also claimed responsibility for an attack on a Shi'ite mosque in Iran earlier this year that killed about two dozen people.

VOA: standard.2009.10.19

One of the powers of a group then is it diminishes responsibility.

群体的一个力量就是,使责任变小。

耶鲁公开课 - 心理学导论课程节选

If there's a group, responsibility to help decreases and this is captured in different ways but the main idea is we all think someone else will help so we don't. There's a diffusion.

如果是一群人，帮助的责任就会分散变小,这体现在多个方面,但最主要的想法就是我们都认为别人会帮助,所以我们就不帮助了，责任被分散了。

耶鲁公开课 - 心理学导论课程节选

One wrinkle in the Times Square plot is that the claim of responsibility came not from al-Qaida, but from the Tehrik-e-Taliban, the Pakistani Taliban group.

VOA: standard.2010.05.05

Responsibility was claimed by the Sunni Muslim militant group Jundallah, which said it staged the attacks to avenge the execution in June of the group's leader for terrorism.

VOA: standard.2010.07.16