Ariz. Rep. Matt Salmon also thought nuclear weapons made for lively conversation
                                
                                
                                    (Newser) -
                                    Matt Salmon's job was to show up at the San Tan Charter School and give a fun civics lesson to curious second- and third-graders. But the Arizona congressman's appearance last week veered off the topic of vetoes—using the Iran nuclear deal as an example, which the  Washington ...