Sen. Frank Lautenberg, D N.J., is one of many people bewildered that a suspected terrorist can be barred from flying but not from purchasing a gun. It "defies common sense," he says, that "the rights of terrorists are placed above the safety of everyday Americans."Well, not exactly. Anyone convicted of terrorism has no right to buy a gun, since felons are barred under federal law. And Lautenberg neglects to mention that in denying constitutional rights to people merely suspected of dangerous connections, he would deny rights to lots of peaceable "everyday Americans."