ALGIERS (Reuters) - Suspected Islamist militants attacked an oil pipeline in northern Algeria on Monday, killing two guards and wounding seven other people, a security source told Reuters. The Djebahia region, some 70 km (45 miles) east of the capital, is a stronghold of Al Qaeda in the Islamic Maghreb (AQIM) which earlier this month killed 37 foreigners at a gas plant in the south, and is where its leader Abdelmalek Droukdel is believed to be based, the source said. ...