Today's Headlines -- Monday

• Back in campaign mode, presidential hopefuls focus (AP)
• Nigerians fear more church attacks after 39 killed (AP)
• Arab monitors head to Syria, opposition skeptical (AP)
• Police: Gunman in murder-suicide dressed as Santa (AP)
• Sadrists call for new elections in Iraq (AP)
• New powerful painkiller has abuse experts worried (AP)
• Kim Jong Il's heir meets with SKorean delegation (AP)
• Conn. house where 5 died in fire is torn down (AP)
• Man killed amid Britain's post-Christmas sales (AP)
• FBI joins search for missing Indiana girl (AP)
• Exclusive: Afghanistan sets ground rules for Taliban talks (Reuters)
• U.S. stores hope for "Mega Monday" of brisk sales (Reuters)
• Nigerian leaders rapped after Islamists attack churches (Reuters)
• First Arab monitors arrive in Syria: source (Reuters)
• PIP implants sold to Dutch firm under new name (Reuters)
• Paul builds campaign on doomsday scenarios (Reuters)
• Suicide bomber kills 7 outside Iraq ministry (Reuters)
• Sony to sell LCD venture stake to Samsung for $940 million (Reuters)
• Joe Lieberman: "I don't think Congress has ever been as bad as it is today." (The Christian Science Monitor)
• Religiously active people more likely to engage in civic life, Pew study finds (The Christian Science Monitor)