From the GlobalPass website.
Effective July 1st, GlobalPass Customers will be able to purchase TAM Brazilian Airlines tickets and earn PremiumMiles or use miles to purchase SuperAwards.
GlobalPass Customers will be able to reserve specific flights from the USA to Brazil.
Customers must perform all travel arrangements with GlobalPass, online or with the GlobalPass Customer Care Center.
Looks like our miles will only be good for "specific flights from the USA to Brazil."