The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

Guns are far more lethal in several respects. A 14-year-old armed witha gun is far more menacing than a 44-year-old with a gun. Although juveniles may be untrained in using firearms, they are more willing to pull the trigger over trivial matters - a leather jacket, a pair of sneakers, a challenging remark or no reason at all - without fully considering the consequences. Also, the gun psychologically distances the offender from the victim; if the same youngster had to kill his or her victim (almost always someone known) with hands, he or she might be deterred by the physical contact.
The （） of guns in juvenile hands.