Americas

New York Stock Exchange...epa05268814 Traders work on the floor of the New York Stock Exchange (NYSE) at the start of the trading day in New York, New York, USA, 20 April 2016.  EPA/JUSTIN LANE

Justin Lane/EPA

Traders work on the floor of the New York Stock Exchange (NYSE) at the start of the trading day in New York

Hillary Clinton...A Secret Service Agent stands guard as Democratic presidential candidate Hillary Clinton speaks at the Corsi senior center, Friday, April 15, 2016, in New York. (AP Photo/Mary Altaffer)

Mary Altaffer/AP

A Secret Service Agent stands guard as Democratic presidential candidate Hillary Clinton speaks at the Corsi senior center, in New York

Low-Wage Workers Strike And Rally For $15 Wage In Chicago...CHICAGO, IL - APRIL 14:  Demonstrators demanding an increase in the minimum wage to $15-dollars-per-hour prepare to march in the streets on April 14, 2016 in Chicago, Illinois. The demonstrators marched to and protested in front of several locations during a day-long effort to draw attention to low-wage jobs. The demonstration was one of about 300 scheduled to take place nationwide today.  (Photo by Scott Olson/Getty Images)

Scott Olson/Getty

Demonstrators demanding an increase in the minimum wage to $15-dollars-per-hour prepare to march in the streets on Thursday in Chicago, Illinois. The demonstrators marched to and protested in front of several locations during a day-long effort to draw attention to low-wage jobs 

Rancher Fred Berns holds fire pole while lighting a controlled pasture fire near Florence, Kan., Wednesday, April 13, 2016. Ranchers in the Flint Hills of Kansas routinely burn their pastures in the spring to promote the growth of new grass for cattle to graze on. (Travis Heying/The Wichita Eagle via AP) LOCAL TELEVISION OUT; MAGS OUT; LOCAL RADIO OUT; LOCAL INTERNET OUT; MANDATORY CREDIT

Travis Heying/The Wichita Eagle/AP

Rancher Fred Berns holds fire pole while lighting a controlled pasture fire near Florence, Kan. Ranchers in the Flint Hills of Kansas routinely burn their pastures in the spring to promote the growth of new grass for cattle to graze on

A general view of the batting helmets of the Los Angeles Dodgers prior to a baseball game Arizona Diamondbacks in Los Angeles, Wednesday, April 13, 2016. (AP Photo/Kelvin Kuo)

Kelvin Kuo/AP

A general view of the batting helmets of the Los Angeles Dodgers prior to a baseball game Arizona Diamondbacks in Los Angeles 

Chicago Police Shoot And Kill Teen On City's West Side...CHICAGO, ILLINOIS - APRIL 12:  Tambrasha Hudson (C) is comforted as she joins demonstrators protesting the shooting death of her son 16-year-old Pierre Loury near the location where he was killed on April 12, 2016 in Chicago, Illinois. Police have said Loury took off running when the vehicle he was in was pulled over by police because it matched the description of a vehicle used in an earlier drive-by shooting. The chase, according to police, ended with an "armed confrontation".  (Photo by Scott Olson/Getty Images)

Scott Olson/Getty

Tambrasha Hudson (C) is comforted as she joins demonstrators protesting the shooting death of her son 16-year-old Pierre Loury near the location where he was killed on Tuesday in Chicago, Illinois. Police have said Loury took off running when the vehicle he was in was pulled over by police because it matched the description of a vehicle used in an earlier drive-by shooting. The chase, according to police, ended with an “armed confrontation”.

Members of the impeachment committee celebrate after voting on the impeachment of Brazilian President Dilma Rousseff at the National Congress in Brasilia...Members of the impeachment committee celebrate after voting on the impeachment of Brazilian President Dilma Rousseff at the National Congress in Brasilia, Brazil April 11, 2016. REUTERS/Ueslei Marcelino      TPX IMAGES OF THE DAY

Ueslei Marcelino/Reuters

Members of the impeachment committee celebrate after voting on the impeachment of Brazilian President Dilma Rousseff at the National Congress in Brasilia, Brazil 

Brian Snyder/Reuters

U.S. Democratic presidential candidate and U.S. Senator Bernie Sanders takes the stage at a campaign rally in Binghamton, New York

Spectators arrive for the final practice round for the Masters golf tournament Wednesday, April 6, 2016, in Augusta, Ga. (AP Photo/David J. Phillip)

David J. Phillip/AP

Spectators arrive for the final practice round for the Masters golf tournament in Augusta, Georgia 

Wilfredo Lee/AP

A woman feeds birds as the sun rises in Bal Harbour, Florida 

Andre Penner/AP

Supporters raise their arms during a rally in support of Brazil’s former President Luiz Inacio Lula da Silva and President Dilma Rousseff, in Sao Bernardo do Campo, in the greater Sao Paulo area, Brazil

US President Obama visits Argentina...epa05229215 US President Barack Obama (L) and his counterpart from Argentina Mauricio Macri (R) make a floral tribute to the victims of the military dictatorship aat Parque de la Memoria in Buenos Aires, Argentina, 24 March 2016. During the tour of the wall, next to the Rio de la plata, the leaders approached the railing, next to the runway, and threw white flowers in tribute to those who lost their lives at the military dictatorship.  EPA/DAVID FERNANDEZ

David Fernandez/EPA

US President Barack Obama and his counterpart from Argentina Mauricio Macri make a floral tribute to the victims of the military dictatorship at Parque de la Memoria in Buenos Aires, Argentina 

U.S. President Barack Obama dances tango during a state dinner hosted by Argentina's President Mauricio Macri at the Centro Cultural Kirchner as part of President Obama's two-day visit to Argentina, in Buenos Aires

Carlos Barria/Reuters

U.S. President Barack Obama dances tango during a state dinner hosted by Argentina’s President Mauricio Macri at the Centro Cultural Kirchner as part of President Obama’s two-day visit to Argentina, in Buenos Aires. 

Nuns speak to each other before Zubik v. Burwell is heard by the U.S. Supreme Court in Washington...Nuns speak to each other before Zubik v. Burwell, an appeal brought by Christian groups demanding full exemption from the requirement to provide insurance covering contraception under the Affordable Care Act, is heard by the U.S. Supreme Court in Washington, March 23, 2016. REUTERS/Joshua Roberts

Joshua Roberts/Reuters

Nuns speak to each other before Zubik v. Burwell, an appeal brought by Christian groups demanding full exemption from the requirement to provide insurance covering contraception under the Affordable Care Act, is heard by the U.S. Supreme Court in Washington 

An Orbital ATK's Cygnus space craft atop a United Launch Alliance Atlas V rocket launchs from Cape Canaveral Air Force Station to go to the International Space Station as seen from Viera in Brevard County, Fla., Tuesday, March 22, 2016. (Tim Shortt/Florida Today via AP)  NO SALES; MANDATORY CREDIT

Tim Shortt/Florida Today/AP

An Orbital ATK’s Cygnus space craft atop a United Launch Alliance Atlas V rocket launches from Cape Canaveral Air Force Station to go to the International Space Station as seen from Viera in Brevard County, Florida 

HAVANA, CUBA - MARCH 22:  U.S. President Barack Obama walks onto stage before delivering remarks at the Gran Teatro de la Habana Alicia Alonso in the hisoric Habana Vieja, or Old Havana, neighborhood March 22, 2016 in Havana, Cuba. Described as a message to the Cuban people about his vision for the future of Cuba, Obama's speeh will be nationally televised to the 11 million people on the communist-controlled island.  (Photo by Chip Somodevilla/Getty Images)

Chip Somodevilla/Getty

U.S. President Barack Obama walks on stage before delivering remarks at the Gran Teatro de la Habana Alicia Alonso in the hisoric Habana Vieja, Havana, Cuba

Reserved seating awaits attendees of Obama's address to the Cuban people at the Gran Teatro de la Habana Alicia Alonso in Havana...Reserved seating awaits attendees of U.S. President Barack Obama's address to the Cuban people at the Gran Teatro de la Habana Alicia Alonso in Havana March 22, 2016. REUTERS/Jonathan Ernst

Jonathan Ernst/Reuters

Reserved seating awaits attendees of U.S. President Barack Obama’s address to the Cuban people at the Gran Teatro de la Habana Alicia Alonso in Havana 

U.S. President Barack Obama and Cuba's President Raul Castro meet in Havana...U.S. President Barack Obama and Cuba's President Raul Castro hold their first meeting on the second day of Obama's visit to Cuba, in Havana March 21, 2016.     REUTERS/Carlos Barria

Carlos Barria/Reuters

U.S. President Barack Obama and Cuba’s President Raul Castro hold their first meeting in Havana on the second day of Obama’s visit to Cuba

US President Barack Obama (2nd L), First...US President Barack Obama (2nd L), First Lady Michelle Obama (L) and daughters Malia (2nd R) and Sasha (R) disembark from Air Force One at the Jose Marti International Airport in Havana on March 20, 2016. Obama arrived in Cuba to bury the hatchet in a more than half-century-long Cold War conflict that turned the communist island and its giant neighbor into bitter enemies.     AFP PHOTO/Nicholas KAMMNICHOLAS KAMM/AFP/Getty Images

Nicholas Kamn/AFP

US President Barack Obama, First Lady Michelle Obama and daughters Malia and Sasha disembark from Air Force One at the Jose Marti International Airport in Havana, Cuba

Workers of General Motors march against Brazil's President Dilma Rousseff,  former president Luiz Inacio Lula da Silva and oppositions as they carry inflatable dolls depicting Rousseff (L) and opposition senator Aecio Neves, near the GM plant in Sao Jose dos Campos, Brazil, March 18, 2016. The banner with pictures of (L-R)  Rousseff, Lula da Silva, senator Neves, Brazil's Vice President Michel Temer, senator Renan Calheiros and President of the Chamber of Deputies Eduardo Cunha, reads, "Out all of them, General Elections now!". REUTERS/Roosevelt Cassio

Roosevelt Cassio/Reuters

Workers of General Motors march against Brazil’s President Dilma Rousseff, former president Luiz Inacio Lula da Silva and oppositions as they carry inflatable dolls depicting Rousseff and opposition senator Aecio Neves, near the GM plant in Sao Jose dos Campos