Political trends come and go in response to
events, says Steve Chapman. Gun control was the rage during the
Clinton administration, but over the past decade or so it became an
obsolete cause. After the horrific crimes in Newtown and Aurora,
though, it’s staging a comeback.

One thing hasn’t changed: The agenda includes mostly measures
that will have little or no effect on the problems they are
supposed to address. They are Potemkin remedies—presentable facades
with empty space behind them.

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