Is the United States ready for a woman president? Yes, of course. The only superpower in the world is lagging behind many countries that have ended the male monopoly on political leadership. Chile recently elected Michelle Bachelet as its first woman president. She's a pediatrician and one-time political prisoner of former strongman Augusto Pinochet. In Liberia, Ellen Johnson-Sirleaf was inaugurated last month as that nation's first woman president. In Finland, Tarja Halonen won re-election in late January as president. Germany's new Chancellor, Angela Merkel, has already touched base with the leaders in Washington and Europe. Two prominent American women who...