Wed 07 Jul 2007Brazil minister fired after air crashPresident Luiz Inacio Lula da Silva fired his defense minister today, heeding calls for the removal of top aviation officials after nearly 200 people were killed in Brazil's worst air crash last week.Waldir Pires was forced out as defense minister after two deadly air crashes in less than a year and months of chaos in Brazil's air traffic system, which is run by the military.