Gregory's Server
It's not Lula doing it - it's the supreme court of Brazil ordering it because Xitter is refusing to comply with Brazilian laws.
Internet companies are required to have an agent in Brazil who can represent them and be held responsible for their conduct, unpaid fines, etc. Xitter has failed to name such a person (and will probably have a hard time finding someone now, since they're refusing to pay 20 million Reais in fines).