Um, no. There's nothing magic about 1 TeV. It's not a barrier.
Mach 1 was a barrier, because the aerodynamics is very different for a plane flying faster than the speed of sound. This means that new design principles had to be worked out. But nothing magic happens when you ramp up from 0.999 TeV to 1 TeV other than the flying champagne corks.
Likewise, new principles (optical proximity correction and phase shift masking) had to be invented so that we can manufacture ICs whose feature size is smaller than the wavelength of light (UV actually) used to expose the masks. That's an example of a barrier being broken.
But Slashdot should disallow the use of the word "barrier" just because a round performance number has been bettered. Alternatively, we can all just mock the editors every time they do it; you decide.