Law enforcement agencies exaggerate and lie publicly in order to mislead 
people, such as unidentified suspects or to weed out claimants to notorious 
crimes who didn't really do it (there are quite a few), but the recent news 
report appeared, as I recall, to be based on a court or other official document 
about the FBI's work, not a news interview. It was vague, but probably not 
exaggerated or false.

If it was an attack through a website that then led to an attack on Tor, that's 
still an attack on Tor, and thus serious.

We should not assume attack methods won't be shared. An agency may share with 
other government agencies that have equal or higher levels of secrecy and with 
international allies.

I assume a website can know what browser I'm using and that if Tor allowed me 
to change its ID string a deeper method for identifying my browser is available 
and unpreventable. Already, some websites deny some functionality (like 
payments) or block access altogether (they might deny it but when entering 
captchas 15 times fails with Tor but, I think, never more than twice with 
non-Tor then they're probably blocking).

On whether to tell users about security methods:
--- I read the warning on viewport size and therefore I don't adjust my 
viewport; otherwise, I would be.
--- Fairly advanced security advice should be offered by considering two major 
groups of users: Those who are doing legitimate work requiring anonymity and 
who are working with or for someone who needs them to stay anonymous. Those who 
are doing acceptable work and mainly are providing cover for the first group. 
The first group will likely be told to read this information, and it should be 
in the browser, so bandwidth need not be used to read it and set up 
accordingly. We don't want someone watching how a main-legitimate user 
interacts with a security website. The cover-providing users have less security 
concerns and, hopefully, are using Tor to hide their music preferences from 
their kid sisters/brothers, and they won't be deterred from use because of a 
link being somewhere. The Mars intelligence agency will learn about something 
called "country-and-western" music but the Martians probably won't blow their 
cover.
--- More general security discussions should not be posted in Tor, but should 
be posted on websites. The Tor Project can decide which websites it trusts and 
list them on the Project's website, which can be or is linked to from inside 
the Tor browser. It's easier to update a website than to update Tor itself, and 
websites may have to be updated quickly and often.

Users and developers of Tor are likely more security-conscious on average than 
average users/devs of Firefox or, especially, whatever Microsoft calls their 
browser these days. Tor users will tolerate more info on the subject, as long 
as those who are relatively careless are not much slowed from jumping ahead 
without reading, if they wish.
-- 
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