RIO DE JANEIRO, BRAZIL - A massive power cut in the Argentine capital Buenos Aires caused a blackout to hundreds of thousands of homes and businesses on Tuesday, December 22nd, and brought subway lines to a standstill. The blackout also occurred when the country's medicine and pharmaceutical regulator extended an emergency authorization to the Pfizer BioTechN vaccine.
Power company Edesur said about one million people in the south-central area of the city were affected.
The outage . . .