Of course he's going to say this -- his party is the one out of power and hence is the one currently losing ground on this front. I the economy hasn't improved significantly by 2012, which provides the Republicans their best opening of actually winning the Presidential election (and probably would have gained control of Congress), I expect him to play a different tune (or at least play it much more softly).
Obama, so far, has done us the favor of not starting any wars of choice, so even if achieving the result comes from a lack of action (or rather relying on diplomacy and sanctions), he has done at least that much to bolster "homeland security."
The economy itself is sort of mixed. Things are looking fairly mediocre and flat for the US, but there are areas in the developed world where things are going quite badly, and a certain amount of "success" may simply be avoiding those more disastrous outcomes.
The national debt is a problem -- our country spends more than it collects in taxes (partly because of nearly flat real GDP, partly because of tax rate cuts, and partly because of increased spending on Republican-friendly and Democratic-friendly programs), and it's difficult to make headway on this matter when the economy isn't growing and two wars are under way. We may be able to do some little things, but we can't really do much until the economy turns around and/or we are no longer deploying our soldiers in such great numbers.