Wolfe, I will explain why you're partly wrong.
This isn't a sham to promise to cut spending, but not do so - at least, not entirely.
The sham is that they DO plan huge cuts to the very things you mention - and are hiding it. They want to dismantle American's 'safety net' - but not say so in the ads.
Watch the following segment that makes this point.
http://www.msnbc.msn.com/id/26315908/ns/msnbc_tv-rachel_maddow_show/
This isn't really anything new - but they've been playing the 'have repealing popular programs as the agenda but hide their support a lot for politics' game since FDR.
For examples, remember that George W. Bush's #1 domestic priority for his second term was to privatize social security; remember that Ronald Reagan started his political career opposing JFK's plans on medicare.
Remember the letter from Eisenhower that there were right-wing 'nuts' who wanted to repeal social security - but were just a fringe at that time with no power, which has changed.
We've had a massive political change in our country since the 70's, with the creation of a radical right media and PR institutions and funding, one result of which is the massive wealth redistribution to the top.
And that wealth redistribution further feeds even more radical movement that direction, in a cycle.
Our brief interlude against that movement - 2006 and 2008 - is less notable for being against it, than for how weakly it is against it, with Obama's top private donor being Goldman Sachs - hardly a new FDR.
There should be a massive move to the left against the harmful massive move to the right - and there isn't. Instead we're on the verge of moving to the right, not the left.
No, the right is relentless in its attempts to get rid of the safety net and it can smell blood. With new energy from the anti-government Koch brothers-funded tea party and such, it's still trying.
While Bush fell short of gaining enough public support, the campaign goes on - and now almost the only thing I hear especially from young people is 'Social Security will just rip me off'.
The race to make the rich the plutocrat class and destroy the middle class is not slowed much, since we have not returned any real liberal government - at least one that can overcome the Republican filibuster yet.