Risk has a habit of coming at us from unforeseen sources at unexpected times in unpredictable ways. Thus the name. Financial markets were hit [Friday] with a double dose of capriciousness as events in both Europe and the Middle East sent jitters around the globe. Market observers watched as scared money did what it usually does; buy U.S. Treasuries. It was this edginess that drove the yield on the Benchmark Ten Year Treasury Note down to 2.44%, its lowest level since May 29. As recently as July 3, that issue was yielding 2.65%. Perceptions of risk can also be fleeting, as reports of easing Ukrainian tensions have already reversed some of yesterday’s price action. Hang on, though, it’s early.