Defense contracting executives said this week that they view the spending bill passed in December as well as next week's planned budget release as positive steps -- but cautioned that there remains uncertainty around the debt ceiling and sequestration. Still, some executives, particularly those leading government services businesses, said simply having budgets in place will give their companies a boost. Marillyn Hewson, chief executive of contracting giant Lockheed Martin, told analysts earlier this week that the passage of the fiscal...