Considering the USN now has CEC equipped ships and Hawkeyes? No I'd say not. That isn't even getting into defensive goodies like Nulka that didn't exist a decade or so ago.
A carrier group can be defeated but it won't be easy. Even at their height the Russians never assumed it would be.
Sorry for quoting a earlier reply, but although the USN navy specially its carrier groups is considered to be very sophisticated and well defended one must remember that in history sheer numbers defeats any technological headstart.
And with respect to the USN navy and all their training and sophisticated hardware.
Their actual battle security and defense against large scale attacks has since the second world war never been tested for real.
I mean carrier groups did see loads of action in the past years, but non of those actions where a real danger to them.
The second world war might be nearly 60 years back, but it did teach us one massive lesson.
No matter how high tech you are, numbers will overwhelm you eventually.
Same goes for Vietnam low tech in mass numbers proved to be a equal match to advanced troops.
My point is the USN has its carrier groups defended and armed to the teeth, and trained them very well.
However their battle strength has never been put to a test.
Since the WOII the USN carrier groups have never been attacked with the aim to destroy the group.
Now i realize that it has been said that the Russian backfires would probably not able to seriously have a shot at a carrier group, but that remains a big question.
Because a lot has been said about armies, navies and air forces but history does show that being the top dogg does not mean you actually come out on top.
And although those backfires are considered inferior to the job at hand, with some upgrades and up to date changes to the platform itself i believe that they actually do pose a serious danger.
We all know what a carrier group is capable off in terms of attacking, as we have seen enough CNN to know.
But in terms of defending it remains to be seen if it can successfully defeat a barrage of nowadays missiles.
And remember if a nation manages to cripple the USN carrier groups then you take away a huge chunk of USN dominance and to many those carrier groups provide the umbrella that the US needs to project power at any place at any time.
And i am pretty sure that back then the Russians did not really care about the costs as long they could sink enough carrier groups. and for that the backfire was a great platform imo.
Obviously i do not know if the backfire can be of any use today, nor do i know if it can be upgraded at all, but i am sure they are bought with some game plan in mind.
just saying.