National Security Brief: Obama Administration Expands ‘Kill List’ Matrix

— The Washington Post reports: Over the past two years, the Obama administration has been secretly developing a new blueprint for pursuing terrorists, a next-generation targeting list called the “disposition matrix.” The matrix contains the names of terrorism suspects arrayed against an accounting of the resources being marshaled to track them down, including sealed indictments and clandestine operations. U.S. officials said the database is designed to go beyond existing kill lists, mapping plans for the “disposition” of suspects beyond the reach of American drones.

— A U.S.-backed military onslaught may have driven Islamist militants from towns in Yemen they seized last year, but many have regrouped into “sleeper cells” threatening anew the areas they vacated, Reuters reports.

— The Wall Street Journal reports: he Obama administration for the first time backed the Lebanese opposition’s call for a new government to be formed in Beirut, following Friday’s killing of a high-ranking Lebanese intelligence official.

— The New York Times reports: A military strike to recapture Mali’s Islamist-held north is growing more likely, according to Western powers, regional bodies and the United Nations — a pronounced shift after months of hesitation and hopes that negotiations might end what is now seen as a far-reaching jihadist threat.

— Iraq’s exiled Vice President said that large ground convoys are traveling from Iran to Syria through Iraq to supply the Syrian government with weapons to fight pro-democracy rebels.

— The New York Times reports: Palestinian militants from Gaza fired dozens of rockets and mortar shells into southern Israel overnight and Wednesday morning, critically wounding two Thai workers in an Israeli border community, the Israeli authorities said. Four Palestinian militants in rocket-launching squads were killed in Israeli airstrikes