The truth is that there's only so much that can be done without infringing significantly on freedom.
While security forces remain aggressive in rooting out potential attacks, the charge to the American people is to remain steadfast and vigilant. We move forward, exercising our blessed freedom while rejecting fear.
"The American people refuse to be terrorized," President Obama said following the bombings.
In one sense, the terrorists have already scored victories. Americans now must cue up and go through security checks to get on an airplane or enter a courthouse.
But terrorists cannot prevail where people value freedom. Our enemies will continue their perverse fight in hopes our country becomes so paranoid that we begin to abandon our principles.
That can't happen, not after 9/11, not after Boston.
As Natan Sharansky said, it's only freedom that has the power to overcome tyranny and terror.
Kercheval is host of TalkLine, broadcast by the MetroNews Statewide Radio Network from 10 a.m. to noon Monday through Friday. The show can be heard locally on WCHS 580 AM.