Brazil may have wanted Venezuela in the South American trade bloc to protect its companies. But will it work?
If Chávez can't attend his inauguration, his designated successor might be overshadowed by an interim leader.
Paraguay was the only country objecting to Venezuela's entry into the Mercosur trade bloc. Its rights may be temporarily suspended, but it's still a member, says a guest blogger.
Venezuela says it will cut off oil supplies. Others aren't being so hard line, writes guest blogger James Bosworth.