"Dragonflies have no vulnerable areas and can see all around. They are natural escape artists. Dragonflies do not track their prey.  They would calculate the insect’s location, direction, and speed, then lay in wait in their prey’s flight path for the chow to fly right into their mouths.  Similarly, the team of spies would be inserted directly into the enemy’s line of sight without the target being aware of their presence.” http://www.militarypress.com/dragonfly/