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)

Argentine train slams into station, killing 49 (AP)

Newark mayor: NYPD misled us on Muslim spying (AP)

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

Romney calls for 20 percent income tax cuts (AP)

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

Man's childhood comic collection fetches $3.5M (AP)

Ishikawa rallies in Match Play (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)

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)

Greece pores over bailout laws amid 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)