Hundreds of workers take part in a demonstration called by diverse trade unions and supported by social movements at the financial centre of Paulista Avenue in Sao Paulo, Brazil on August 16, 2016 demanding the guarantee of labor rights and against job cuts. / AFP PHOTO / NELSON ALMEIDANELSON ALMEIDA/AFP/Getty Images

Hundreds of workers take part in a demonstration called by diverse trade unions and supported by social movements at the financial centre of Paulista Avenue in Sao Paulo, Brazil on August 16, 2016 demanding the guarantee of labor rights and against job cuts. / AFP PHOTO / NELSON ALMEIDANELSON ALMEIDA/AFP/Getty Images

A flooded apartment building is seen August 16, 2016 in Prairieville, Louisiana. As many as 30,000 people have been rescued following unprecedented floods in the southern US state of Louisiana, including a 78-year-old woman who spent a night stranded in a tree, police said late Monday. Residents awoke Tuesday to find their homes and businesses still surrounded by muddy water, without clear answers about when the epic flooding that has killed at least seven is expected to recede. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

The Gold-N-Guns pawn shop is seen in flood waters August 16, 2016 in Gonzales, Louisiana. As many as 30,000 people have been rescued following unprecedented floods in the southern US state of Louisiana, including a 78-year-old woman who spent a night stranded in a tree, police said late Monday. Residents awoke Tuesday to find their homes and businesses still surrounded by muddy water, without clear answers about when the epic flooding that has killed at least seven is expected to recede. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

A shopping cart sits in a flooded parking lot August 16, 2016 in Prairieville, Louisiana. As many as 30,000 people have been rescued following unprecedented floods in the southern US state of Louisiana, including a 78-year-old woman who spent a night stranded in a tree, police said late Monday. Residents awoke Tuesday to find their homes and businesses still surrounded by muddy water, without clear answers about when the epic flooding that has killed at least seven is expected to recede. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

A man stands on the stairs os a home surrounded by flood waters August 16, 2016 in Gonzales, Louisiana. As many as 30,000 people have been rescued following unprecedented floods in the southern US state of Louisiana, including a 78-year-old woman who spent a night stranded in a tree, police said late Monday. Residents awoke Tuesday to find their homes and businesses still surrounded by muddy water, without clear answers about when the epic flooding that has killed at least seven is expected to recede. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

A man watches as his neighbors dog takes refuge on his porch August 16, 2016 in Gonzales, Louisiana. As many as 30,000 people have been rescued following unprecedented floods in the southern US state of Louisiana, including a 78-year-old woman who spent a night stranded in a tree, police said late Monday. Residents awoke Tuesday to find their homes and businesses still surrounded by muddy water, without clear answers about when the epic flooding that has killed at least seven is expected to recede. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

Motorcycles are seen in flood waters August 16, 2016 in Gonzales, Louisiana. As many as 30,000 people have been rescued following unprecedented floods in the southern US state of Louisiana, including a 78-year-old woman who spent a night stranded in a tree, police said late Monday. Residents awoke Tuesday to find their homes and businesses still surrounded by muddy water, without clear answers about when the epic flooding that has killed at least seven is expected to recede. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images