The International Maritime Organization has decreed that by 2015, all large deep sea ships will be required to carry the latest in electronic navigation equipment. But does state-of-the-art navigation technology prevent shipwrecks like last week's off the Italian coast? University of Southern Mississippi hydrographer Max van Norden talks about the technology.

Search and rescue operations at the wreck of the Costa Concordia have resumed, after being halted for a third time, due to choppy waters and the partially submerged vessel's tendency to shift on the rocks near Italy's coast.

BBC correspondent Luisa Baldini says the search has resumed, after being called off early Friday.

Here's a roundup of recent developments in the story:

From Italy, Sylvia Poggioli report for NPR's Newscast unit:

An online battle is raging between Israelis and Arabs, with each side unveiling credit card and other personal information of thousands of private citizens, as well as temporarily disabling high-profile websites, like the Tel Aviv and Saudi Arabian stock exchanges.

So far, the recent Web assaults seem to be the work of bored young people venting frustration. But others worry that these actions could easily escalate into a much larger online fight.

Bandleader and producer Johnny Otis, who launched and then nurtured the careers of many of R&B's greatest singers, died Tuesday at his home near Los Angeles. He was 90.

This interview was originally broadcast on September 22, 2011.

Former Mississippi Gov. Haley Barbour says faith guided his decision to pardon more than 200 convicted criminals before he left office. Now the state's attorney general is seeking a court order to void some of those pardons. Host Michel Martin talks with Clarion-Ledger Reporter Jessica Bakeman about the pending legal challenge.

The GOP presidential hopefuls debated in North Charleston on Thursday. The debate came after Mitt Romney's Iowa win was negated, Newt Gingrich's ex-wife alleged that he requested an open marriage, and Rick Perry quit the race. Host Michel Martin talks politics with GOP strategist Ron Christie and former Obama administration staffer Corey Ealons.

The guys discuss Marianne Gingrich's comment that her ex-husband Newt is not morally fit to be president. They also weigh in funding issues with Red Tails, and new data showing that men are catching up to women when it comes to obesity rates. Host Michel Martin hears from Jimi Izrael, Arsalan Ifthikar, Kevin Williamson and Dave Zirin.

Tell Me More editor Ammad Omar and host Michel Martin comb recent listener feedback. More than 900 responses poured in for a recent conversation about pushing election day to the weekend. They also hear responses to an interview with the comedian who made the YouTube viral video about stuff 'white girls say.'

Nationwide, many 20-somethings are leaving their churches behind. David Kinnamen and his staff at the research company, The Barna Group, interviewed more than 5,000 Christians, and he says the dropout issue is real and urgent. Host Michel Martin speaks with Kinnamen about his book You Lost Me.