Cycling is safe enough, but the same cannot be said for all people. The sad but true fact is there are quite a few crazy, insane, dangerous people running around free. I do not see anything wrong with someone on a long tour carrying a concealed firearm for self defence. I have never carried a weapon on a tour. I have not had a need to. Usually, you have to be in a sort of bad place around violent people to be attacked. Those places and people are easy enough to recognize and avoid, but not always. I would not want the extra weight. It is not necessary to have a handgun. If a person is licensed to carry a concealed handgun in the states he travels through, it's his right to do so, and who can say it will never save a life or deter someone who intends to do him wrong in a serious way.