You're a physicist, right? Do physicists use different terms ("falsifying" and "testing" vs "verifying" and "confirming") than de Grey?
Well, in popular writings they use what they like. In formal writing the standard is rather neutral, something like "A Standard Model Higgs boson is excluded at the 95% confidence level in the mass ranges from 110.0 GeV to 117.5 GeV" or "the signal level in our experiment was "The most significant excess of events is observed around 126 GeV with a local significance of 2.5sigma. The global probability for such an excess to occur in the full searched mass range is approximately 30%." (from the current arxiv.org/hep-ex).
Watch the video response here: http://www.youtube.com/watch?v=-tsI_28O3Ws
This was posted here on lesswrong a while ago, but they recently uploaded a new version of the video and I took the liberty of typing up a transcript.
The video is fairly long, about 25 minutes. But it's incredibly engaging and I highly recommend watching it. For those who prefer text (because it's faster or because you are a computer), you can read the transcript in this google doc, or below in the comments. Enjoy!