Romney's campaign was out with a new web video meant to remind Republicans in Ohio, Tennessee, Georgia with primary elections in less than a week that Santorum sough votes from Michigan Democrats. For Romney, it was a chance to gain the upper hand as each man in the struggle to persuade Republican voters that he is the truer conservative and his rival is merely a pretender.

Mitt Romney fended off Rick Santorum on Wednesday, winning the Arizona and Michigan primary races. The two have been vying for the top spot, but both candidates have been prone to gaffes. Host Michel Martin talks about the showdown with GOP strategist Ron Christie and Santorum supporter Bob Vander Plaats.

Starting Thursday, when you sign into Google and use its dozens of popular services, it will combine that personal data to produce more targeted ads. Host Michel Martin and Washington Post national technology reporter Cecilia Kang discuss what concerned users can do.

Caring for loved ones with Alzheimer's disease can drain families' bank accounts. But there is also a high emotional price to be paid. The administration's federal budget would fund more support for family caregivers.

Bertie Bowman's Step by Step marks the final chapter of Tell Me More's Black History Month memoir series. Bowman was a farm worker in South Carolina, but a chance encounter with a senator brought him to the job of sweeping the Capitol steps. He now serves on the Senate Foreign Relations Committee. Bowman talks with host Michel Martin.

Two students have become the first black editors-in-chief of their college newspapers in Oregon, which has a black population of less than 2 percent. Host Michel Martin talks with Brandon Southward of Oregon State University and Tyree Harris of the University of Oregon.

The story of Essam Ahmed Eid is a cautionary tale of one man's drive to put more money in his pocket by taking advantage of other people's problems.

Not everyone who relies on Google's products is concerned about pending privacy changes. Some don't care; others don't know the change is looming. But for those who are concerned, the idea that Feb. 29 is their last chance to change these settings seems to have lit the fire of urgency.