With no end in sight to political unrest in the Middle East and North Africa, borrowers from the region will find it costlier to roll over maturing debt this year but are unlikely to default, Reuters reported in an analysis. Hundreds of people have been killed in Bahrain and Libya in anti-government protests inspired by upheavals that just weeks ago dislodged decades-old regimes in Egypt and Tunisia. The turmoil has not only put on hold bond issuance plans from the region, it has also sparked a jump in the cost of debt insurance.