He was referring to the government of Bahrain's use of Brazilian tear gas to violently stop protests (warning, link contains graphic content). 
Alikuwa anamaanisha hatua ya serikali ya Bahrain kutumia mabomu ya machozi ya ki-Brazili kuwanyamazisha waandamanaji kwa kutumia nguvu (tahadhari, kiungo kina maudhui yenye kutisha).