When something goes wrong, someone has to step up and take responsibility.
Tips
grammar
Two patterns: as a verb-object phrase ('to take responsibility', e.g. 我来负责任), or as an attributive adjective ('responsible', e.g. 负责任的政府). It parses as 负 + 责任 ('bear responsibility').
mistakes
Distinct from 负责 (to be in charge of). 负责 takes an object ('I'm in charge of finance' - 我负责财务); 负责任 emphasizes the moral quality of being responsible.