Rick Santorum won two Southern state GOP presidential primaries Tuesday, embarrassing Mitt Romney who had predicted he'd take one.

Second-place finisher Newt Gingrich vowed to fight on to Tampa, tag-teaming Romney along with Santorum. The "three-way dynamic," as he put it, is a winner for Gingrich and, perhaps, his dream of deal-making at the convention, and for Romney, too, whose Southern result could have been much worse if he'd been posting up against Santorum alone.

Good morning.

Our early headlines:

-- 'Tragic Day For All Of Belgium': 22 Children Killed In Bus Crash.

-- In Afghanistan, Panetta Says Mission Continues.

Repair crews are working this morning to restore power to thousands of homes and businesses in Boston's Back Bay district, "after two transformers caught fire Tuesday night, knocking out power" and sending think black smoke billowing over the area, our colleagues at WBUR report.

Judges at a war crimes tribunal convicted Congolese warlord Thomas Lubanga of snatching children from the street and turning them into killers. A sentencing hearing will now be scheduled. Lubanga faces a maximum sentence of life imprisonment.

BOISE, Idaho -- Some Idaho lawmakers are weighing in on a national debate over whether religious institutions should be required to provide birth control coverage to employees. Samantha Wright reports.

OLYMPIA -- Same sex marriage supporters in Washington state are chalking up a small victory Tuesday. A Thurston County judge agrees with changes they wanted on a possible voter referendum.

PORTLAND -- A medical doctor who helped pass Oregon’s assisted suicide law used the state's "Death with Dignity" Act to end his own life Sunday.

There's been a horrible traffic accident inside a Swiss tunnel. At least 28 people — 22 of them children mostly around the age of 12 — were killed Tuesday night when the bus they were in crashed.