"For the People" by Ronald D. Ferguson appeared in Daily Science Fiction on February 11, 2013. "Assassins surgically implant explosives inside the abdomen of a man who has a daily appointment with the president."
The bomb in the abdomen idea is similar to one of Joker's diabolical strategies in Batman: Dark Knight. No accusation of plagiarism, but use of the device did detract and distract from an otherwise original and well-told tale. 4 out of 7 rocket-dragons.