Gun-control is an issue over which intense lobbying takes place by various interest groups, most notably the NRA (National Rifle Association) and Handgun Control, Inc.  Read about gun control in your text and then check out their websites: NRA and Brady Campaign. See the article How to Prevent Gun Deaths: Where Experts and the Public Agree for views on a variety of measures.

How does each group try to appeal to potential supporters?
How do they try to attract and involve members?
Consider the arguments raised on both sides and respond to the question: Are tougher gun control laws necessary?