Facebook CEO urges Brazilians to decry WhatsApp block

SAO PAULO/RIO DE JANEIRO (Reuters) - Facebook Inc's Chief Executive Mark Zuckerberg called on Brazilians to demand his company's WhatsApp messaging service never be blocked again after an appeals court on Tuesday overturned the application's second suspension in five months. In a post in English on his Facebook page, the U.S. billionaire and Facebook founder urged Brazilians to gather outside Congress in the capital Brasilia at 6 p.m. (1700 EDT) on Wednesday to rally in favor of legislation that