In his weekly address, President Barack Obama detailed the administration’s fight against terrorism and talked about investigations into the country’s terrorist watch list and ways security personnel conduct screening for air travel.More than a week after the Christmas Day attempted act of terrorism aboard a plane headed to Detroit, Obama said he received “preliminary findings— of the investigation on Thursday and has asked John Brennan, the White House homeland security adviser, to give him the final recommendations in the next few days.Obama singled out Yemen, a country he said is “grappling with crushing poverty and deadly insurgencies— and which appears to have hosted the alleged Nigerian plotter, Umar Farouk Abdulmutallab. “So, as President, I’ve made it a priority to strengthen our partnership with the Yemeni government — training and equipping their security forces, sharing intelligence and working with them to strike al-Qaida terrorists,— Obama said.The president also noted that the group that appears to be behind the terrorist attempt, al-Qaida in the Arabian Peninsula, has targeted U.S. interests before: “In recent years, they have bombed Yemeni government facilities and Western hotels, restaurants and embassies including our embassy in 2008, killing one American.—“All those involved in the attempted act of terrorism on Christmas must know — you too will be held to account,— Obama said.Obama also mentioned the “seven dedicated men and women of the CIA— who were killed this week in Afghanistan and said that “the hard work of protecting our nation is never done.—At the same time, Obama said, “let’s renew that timeless American spirit of resolve and confidence and optimism. Instead of succumbing to partisanship and division, let’s summon the unity that this moment demands. Let’s work together, with a seriousness of purpose, to do what must be done to keep our country safe.—