Shelling kills 2 Western journalists in Syria (AP)

Santorum mocks Romney ahead of Arizona GOP debate (AP)

Obama seeks corporate tax rate cut, loophole limit (AP)

Newark mayor: NYPD Muslim files 'deeply offensive' (AP)

Police: Ga. victims related in Korean spa shooting (AP)

Russia warns against 'hasty conclusions' over Iran (AP)

New black history museum rising on National Mall (AP)

High court torn over law banning lies about medals (AP)

Argentine train slams into station, killing 49 (AP)

Romney calls for 20 percent income tax cuts (AP)

Obama urges corporate tax cut, closing loopholes (Reuters)

U.S., French journalists killed in Syria (Reuters)

Fitch downgrades Greece on debt swap plan (Reuters)

Congress members receive threatening letters (Reuters)

Home resales at 1-1/2 year-high, supply falls (Reuters)

Iran defiant as U.N. nuclear talks fail (Reuters)

Assad forces try to bomb Homs into submission (Reuters)

Karzai urges calm as six die in Afghan Koran protests (Reuters)

Could Rick Santorum super PAC do more harm than good? (The Christian Science Monitor)

Stolen Valor Act at Supreme Court: Is lying about being a hero a right? (The Christian Science Monitor)