Confirmation for cached passphrases useful?

[Robert J. Hansen]

On 10/15/10 1:31 PM, Doug Barton wrote:
> The other problem with the confirmation proposal is that ... the
> intersection between plausible attack vectors and vulnerabilities
> that [this proposal] would actually fix seems [very] small.

I seem to recall saying something similar to this a few days ago.  :)

I'll go one step further: so far I haven't seen anyone present a
plausible intersection.  I've seen some hypothetical intersections, but
none that I think are plausible.

This seems like a nonsolution to a nonproblem.