AlQa'dah 04, 1433, September 20, 2012, SPA -- U.S. President Barack Obama spoke with Afghan President Hamid Karzai by video conference last night as part of their regular consultations, the White House said. The two Presidents discussed a range of issues, including efforts to stem insider attacks on U.S., coalition, and Afghan forces; the importance of continuing to encourage restraint and non-violence in reaction to inflammatory materials; and continued implementation of the U.S.-Afghan Strategic Partnership Agreement, the White House said in a statement. The statement added that the President reiterated his strong support for Afghan sovereignty, and the two leaders agreed to take additional concrete steps to implement the Strategic Partnership Agreement, including launching the U.S.-Afghan Bilateral Commission in coming weeks and beginning negotiations on a Bilateral Security Agreement.