Sarah Palin’s choice of an international venue to deliver an address on “My Vision of America” is canny. She will speak in March before India’s business, political, diplomatic, academic and media elite at the annual India Today Conclave. The gathering arguably possesses the biggest private-sector megaphone in the world’s largest democracy. And while the delegates may not be a microcosm of the country’s 1.2 billion mostly poor people, they certainly make decisions that matter. Mrs. Palin’s choice is also shrewd because her visit to India will come barely three months after a celebrated one by President Obama. Her appearance is...