Last year I was working on an article about foreign fighters and volunteers in Ukraine... Among the people I interviewed: Ryan Wesley Routh, the 58-year-old man whom the F.B.I. is investigating in what it is calling an assassination attempt... Mr. Routh, who had spent some time in Ukraine trying to raise support for the war, was seeking recruits from among Afghan soldiers who fled the Taliban... There were a few complications. Mr. Routh, a former construction worker from Greensboro, N. C., said he never fought in Ukraine himself — he was too old and had no military experience. *** When...