Any positive news on the economic front, however, was eclipsed by a number of risk factors. Among them, month-end indexation demand, a climb-down by PIMCO on its view that the bond's "salad days are over," the Blix report Saturday, FBI fly-overs above Indiana University spawning spurious hijack talk, white powder found in a House letter, and war plans on North Korea. These factors ran the full credibility range, but helped keep bonds elevated, even after the futures close. The June bond closed up 26/32 at 114-15, near its highs, while the curve held steady. St. Louis Fed's Poole said the Fed would respond vigorously to market upsets, if warranted.