Not mentioned here is the fact that old conspiracy theories surrounding the explosion that destroyed the Alcantara launch pad and killed the cream of the crop of the Brazilian space program, have recently been resurrected and it's believed plausible by some members of the Brazilian government although not widely publicized. Some blame the French for possible sabotaging it.
Over the years the Brazilian secret service (ABIN), have arrested several French spies around Alcantara - the latest case was that a French spy posing as kitesurf instructor. Other cases include water buoys found at sea near the Air Base loaded with electronics, also blamed on the French.
EDIT: added a few sources (sorry portuguese only)
http://www1.folha.uol.com.br/fsp/poder/137424-suspeita-de-sa...
http://www.metro.org.br/jose_alves/os-cacas-militares-e-as-b...
http://jornalpequeno.com.br/2013/11/22/governo-confirma-cont...
http://www.planobrazil.com/dez-anos-depois-explosao-de-fogue...