What is it about Boston and bomb threats? This afternoon, someone allegedly brought a package into a post office, set it on the counter, and said it was a bomb, WCVB reports. The man took the package into the office on Avenue DeLafayette and gave the clerk a note that said, "This is a bomb. Put your 20s and 50s in the box or I'll blow this place up." She gave him $40. In its......