Oil And Politics: Beijing plays the debt card as the Obama administration quietly lets China acquire major ownership interests in oil and natural gas resources across the U.S. at the same time it blocks the Keystone pipeline. Normally, foreign investment in the U.S. is to be welcomed. It creates jobs, boosts economic growth and promotes trade and exports. But when that investor is an ambitious and increasingly belligerent China to whom we owe over a trillion dollars, eyebrows and concerns need to be raised. Reversing a Bush administration policy, the Obama administration is encouraging Beijing to acquire equity interests in...