The carnage has raised concerns that the Shiite militias that stalked members of the minority Sunni population in the dark days of 2006 and 2007 could be remobilizing, in response to attacks by Sunni extremists. Members of Asaib Ahl al-Haq, an Iranian-backed Shiite group responsible for thousands of attacks on U.S. forces during the Iraq war, admit they have ramped up targeted killings in response to a cascade of bomb attacks on their neighborhoods. “We’ve had to be much more active,” said an Asaib Ahl al-Haq commander who goes by the nom de guerre Abu Sajad. “Those who are trying to incite sectarianism, we have to deal with them,” he said, drawing his hand over his throat like a knife. More than 1,000 people were killed in January in Iraq, according to Agence France-Presse. That was the highest death toll since April 2008. Iraq’s Shiite-led government is struggling to […]