Also: Cardinals prepare to begin papal conclave; U.S. and Afghan soldiers killed in "insider attack;" Obama to continue "charm offensive;" Harvard faculty stunned by search of their emails.
Our early headlines:
-- Several U.S. And Afghan Soldiers Killed In "Insider Attack." (BBC News)
-- "Karzai Inflames U.S. Tensions." (The Wall Street Journal)
-- "Recovery Slow As Japan Marks 2 Years Since Tsunami." (The Associated Press)
-- "Obama To Continue 'Charm Offensive.' " (CBS News)
-- "Harvard Search of E-Mail Stuns Faculty Members." (The New York Times)
-- Queen Elizabeth II "To Miss Commonwealth Day Service As She Recovers From Illness." (The Guardian)