The U.S. should avoid any military involvement in Libya. No one doubts the importance of U.S. action to end the regime of Moammar Kadafi. Unlike Egyptian President Hosni Mubarak, whose overthrow inspired a resistance movement in Libya, Kadafi has made war on his own people. The United States' response has been muscular, if delayed. President Obama and Secretary of State Hillary Rodham Clinton explicitly have called for Kadafi's removal, a dramatic departure from diplomatic norms. And Obama has seized the assets of Kadafi and his family, an action paralleled by those of the U.N. Security Council and the European Union.