<s>
One	O
scholar	O
summarized	O
the	O
unique	O
challenges	O
presented	O
by	O
the	O
cultural	O
context	O
of	O
/b/	O
by	O
observing	O
that	O
"	O
it	O
is	O
impossible	O
to	O
truly	O
discern	O
posters’	O
views	O
due	O
to	O
their	O
anonymity	O
and	O
the	O
saturation	O
of	O
4chan	O
's	O
discourse	O
with	O
self-referential	O
irony	B-Application
and	O
a	O
refusal	O
to	O
accept	O
anything	O
at	O
face-value	O
"	O
.	O
</s>
<s>
In	O
January	O
2012	O
,	O
when	O
the	O
United	O
States	O
Department	O
of	O
Justice	O
took	O
down	O
Megaupload	B-Application
,	O
Anonymous	O
retaliated	O
by	O
hacking	O
various	O
websites	O
including	O
that	O
of	O
the	O
Department	O
of	O
Justice	O
and	O
the	O
Federal	O
Bureau	O
of	O
Investigation	O
.	O
</s>
