Washington:  An Islamic militant group released a video on Tuesday showing the beheading of a second U.S. hostage, blaming the killing on President Barack Obama and raising the pressure on him to order military strikes on the group in its sanctuary in Syria. The hostage, Steven J. Sotloff, is shown in the video kneeling like the previous victim, James Foley, while his masked killer stands above, wielding a knife. Sotloff […]