US stock futures point to a slightly higher open as trading resumes following the Christmas holiday. Holiday sales came in short of expectations but so far the market is shrugging it off. The unresolved fiscal cliff remains a weight on the market and urgency will only increase as time runs nigh on 2012. After House Speaker John Boehner’s “Plan B” bill fell flat last week his support was undermined and it was left to Senate leaders and President Barack Obama to iron out a deal. The president who is returning to Washington today early from his family vacation in ...