The Defense Advanced Research Projects Agency (DARPA) is involved with a research project intent on implanting microchips into pupal moths that will allow those moths to be controlled as biological UAVs when they have reached maturity. Such moths could then be used as advanced infiltration devices against otherwise unsuspecting enemies.

The sword is a metaphor used often throughout the Bible, a metaphor with a powerful purpose. One might say that the metaphor of the sword reveals intent, and in these verses of Ezekiel, God reveals His intent to use Babylon to carry out His wrath against idolatrous and rebellions Jerusalem.