PITTSFIELD They sat on hold, 72 of them, waiting by their computers for their big public hearing moment on Adobe Connect. Another 117 people called and left voicemails. Hundreds sent emails, letters and even faxes â 428 in all. Comments poured in last summer after the Environmental Protection Agency released the latest version of its approach to removing toxic polychlorinated biphenyls (PCBs) from the Housatonic River, the one devised in closed-door negotiations with the General Electric Co. and other parties. EPA officials listened, without comment, to scorching criticism of the agency...