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ROME—Pope Francis is likely to look to the developing world in his appointment of more cardinals this month, as he seeks to reshape the Roman Catholic hierarchy to better reflect regions where the church is flourishing. The Argentina-born pope also may use his power to name cardinals to strengthen his support within the Vatican administration, known as the Roman Curia, and to signal his encouragement to beleaguered Christians in the Middle East, experts said.

TUCSON, Ariz.—Gov. Jan Brewer, far from comfortable in the media spotlight, again finds herself trying to unite and defend her state in the midst of a national storm. Last year, the Republican spoke out forcefully in defense of a controversial state law cracking down on illegal immigration. Once again all eyes are on Arizona after Saturday's...

A third American missionary has been infected with Ebola while working in Liberia and is being treated in an isolation unit in the Monrovia hospital where he works, putting into sharp focus the risks and ethical dilemmas confronting missionaries around the world. The doctor, who wasn't identified, is the second missionary working for SIM USA, a Charlotte, N.C., Christian organization, to contract the deadly disease.