Who do you think bears responsibility for this tragedy?

Who do you think bears responsibility for this tragedy?

Read:  The Dhaka Factory Fire: Who is Responsible?
http://www.scu.edu/ethics-center/ethicsblog/globaldialog.cfm?b=180&c=15006

With reference to the assigned reading, and in light of some of the responses of Western manufacturers and retailers who profit from operations in Bangladesh (Google recent articles) , consider the questions at the end of the article, i.e.,
 
Who do you think bears responsibility for this tragedy? What other ethical frameworks (social, political, etc…) can help unpack this complicated scenario? How would you use these other frameworks to decide who is responsible?