Do you think u.s companies have an obligation to know about conditions under which their products are made?

Yes i do think they have an obligation. Since the U.S isnt one of the poorest countries and own many companies there is no excuse why their people should be working under broken labor laws. Also the U.S has many unions so they can't not take care of workers. There excuse is usually that the companies give the ownership of sweatshops to subcontractors according to "sweatshops are a dream" but at the end you cant just say the subcontractor is in ownership because your in ownership of the subcontractor and once us consumers find out we won't want to buy clothes. So i say yes they do have an obligation.