Before
he
went
to
Cuba
last
week
for
more
cancer-related
treatment,
Chavez
had
spoken
enthusiastically
about
attending
the
Mercosur
bloc's
meeting
in
Brasilia
to
celebrate
Venezuela's
entry,
Reuters
reported.
The
ruler,
also
a
key
figure
in
Venezuela's
state-run
oil
company,
PDVSA,
has
not
been
seen
in
public
since
15
November.
"Chavez
is
not
coming.
They've
even
canceled
the
hotel
reservation,"
a
Brazilian
foreign
ministry
source
told
the
news
wire
on
Thursday.
Another
Brazilian
official
said
Chavez's
logistics
and
security
advance
staff
were
leaving
Brasilia.
In
Caracas,
a
source
at
the
Miraflores
presidential
palace
also
said…
