Tom Gjelten

Southern Baptists, who in 1995 apologized for their past defense of slavery and in 2017 denounced white supremacy, are resolved once again to show their sensitivity to a pressing social concern. The 2019 convention in Birmingham, Ala., is focusing heavily on the problem of sexual abuse by church leaders.

Sixteen years after an investigation in Boston highlighted the dimensions of the sex abuse crisis in the Catholic priesthood, the financial and reputational cost to the Catholic church continues to grow.

Saturday's nationwide "March Against Sharia," sponsored by a group known for aggressively criticizing Islam, has in recent days become a rallying cause for right-wing extremists, forcing march organizers to repudiate some of their own supporters and prompting concern about clashes with militant leftists.

As investigators look into the Boston Marathon bombings, one crucial question is whether the suspects, brothers Tamerlan and Dzhokhar Tsarnaev, acted alone or had help. The clues might be found in the bombs used.

From what is now known, it appears the brothers assembled a whole arsenal of explosives. Watertown Police Chief Edward Deveau told CNN last weekend that the suspects had at least six bombs, including the two used in the attack and one thrown at police during a shootout.

The latest national security issue to figure in the presidential campaign has little to do with Iran, Afghanistan or other foreign policy challenges. Mitt Romney is instead focusing on what he and other Republicans allege is the Obama administration's record of leaking classified information for political purposes.

Sanctions have not often worked to get governments to change their behavior, but Iran may prove to be an exception. The country depends on income from oil sales, and the oil sector is highly vulnerable to sanctions.

The United States has stopped buying Iranian oil, and the European Union is set to do so at the end of next month. There are sanctions on Iran's central bank and punishments for companies that help Iran ship its oil.

Jamie Webster, an oil market analyst at PFC Energy, says Iran's oil exports — normally about 2.5 million barrels a day — are in serious jeopardy.