President Obama visits Vietnam

El presidente de EEUU, Barack Obama guiña el ojo a su llegada para una rueda de prensa junto al presidente de Vietnam, Tran Dai Quang, el lunes 23 de mayo de 2016 en el Centro Internacional de Convenciones en Hanoi, Vietnam. (AP Foto/Carolyn Kaster)

U.S. President Barack Obama greets people as he walks to his motorcade vehicle after meeting American Chef Anthony Bourdain in a shopping area in Hanoi, Vietnam, Tuesday, May 24, 2016. President Barack Obama taped the second part of an interview with CNN personality Anthony Bourdain before leaving the Vietnamese capital for Ho Chi Minh City on Tuesday. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama speaks at the National Convention Center in Hanoi, Vietnam, Tuesday, May 24, 2016. (AP Photo/Carolyn Kaster)

President Barack Obama uses an iPad as he tours the DreamPlex Coworking Space in Ho Chi Minh City, Vietnam, Tuesday, May 24, 2016. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama attends a press conference with Vietnam’s President Tran Dai Quang at the Presidential Palace Compound in Hanoi, Vietnam May 23, 2016. (Carlos Barria/REUTERS)

President Barack Obama looks to entrepreneurs on stage with him during a visit to the DreamPlex Coworking Space in Ho Chi Minh City, Vietnam, Tuesday, May 24, 2016. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama speaks at the National Convention Center in Hanoi, Vietnam, Tuesday, May 24, 2016. After knocking down one of the last vestiges of Cold War antagonism with a former war enemy, Obama on Tuesday took his push for closer ties directly to the Vietnamese people, meeting with activists and entrepreneurs and arguing that better human rights would boost the communist country’s economy, stability and regional power. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama bids farewell to the audience after delivering a speech at the National Convention Center in Hanoi, Vietnam Tuesday, May 24, 2016. (Hoang Dinh Nam/Pool Photo via AP)

U.S. president Barack Obama, center, flanked by Secretary of State John Kerry, left, and National Security Council Advisor Susan Rice holds official talks with Vietnamese Prime Minister Nguyen Xuan Phuc (not pictured) at Phuc’s Cabinet Office in May 23, 2016. Obama on Monday lifted a half-century-old ban on selling arms to Vietnam during his first visit to the communist country, looking to bolster a government seen as a crucial, though flawed partner in a region he’s tried to place at the center of his foreign policy legacy. (Hoang Dinh Nam, Pool Photo via AP).

U.S. President Barack Obama delivers a speech during a press conference in Hanoi, Vietnam, Monday, May 23, 2016. Obama on Monday lifted a decades-old arms export embargo for Vietnam during his first visit to the communist country, looking to bolster a government seen as a crucial, though flawed partner even as he pushes for better human rights from the one-party state. (Luong Thai Linh, Pool Photo via AP)

U.S. President Barack Obama, left, and Vietnamese President Tran Dai Quang walk to a meeting after shaking hands at the Presidential Palace in Hanoi, Vietnam, Monday, May 23, 2016. The president is on a weeklong trip to Asia as part of his effort to pay more attention to the region and boost economic and security cooperation. (AP Photo/Carolyn Kaster)

President Barack Obama is given flowers as he greeted by Nguyen Thi Quyet Tam, Chairwoman of People’s Council HCMC, second from left, as he arrives on Air Force One at Tan Son Nhat International Airport in Ho Chi Minh City, Vietnam, Tuesday, May 24, 2016. Ho Chi Minh City is the second stop on Obama’s three-day visit to America’s former wartime enemy. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama meets with Vietnamese Communist party secretary general Nguyen Phu Trong at the Central Office of the Communist Party of Vietnam in Hanoi, Vietnam, Monday, May 23, 2016. Obama on Monday lifted a half-century-old ban on selling arms to Vietnam during his first visit to the communist country, looking to bolster a government seen as a crucial, though flawed partner in a region he’s tried to place at the center of his foreign policy legacy. (AP Photo/Carolyn Kaster)

US President Barack Obama and Vietnamese President Tran Dai Quang review the honor guard during a welcoming ceremony at the Presidential Palace in Hanoi, Vietnam, Monday, May 23, 2016. Obama started his first visit to Vietnam on Monday looking to bolster the government with trade opportunities and the possible lifting of an arms export embargo even as he pushes for better human rights from the one-party state. (AP Photo/Na Son Nguyen)

Vietnamese students hold U.S. and Vietnamese flags at a welcoming ceremony for U.S. President Barack Obama at the Presidential Palace in Hanoi, Vietnam. Monday, May 23, 2016. U.S. President Barack Obama started his first visit to Vietnam on Monday looking to bolster the government with trade opportunities and the possible lifting of an arms export embargo even as he pushes for better human rights from the one-party state. (AP Photo/Na Son Nguyen)

U.S. President Barack Obam, right, and Vietnamese President Tran Dai Quang, toast during a State Luncheon at the International Convention Center in Hanoi, Vietnam, Monday, May 23, 2016. Obama on Monday lifted a half-century-old ban on selling arms to Vietnam during his first visit to the communist country, looking to bolster a government seen as a crucial, though flawed partner in a region he’s tried to place at the center of his foreign policy legacy. (AP Photo/Carolyn Kaster)

People in the audience look on as U.S. President Barack Obama speaks at the National Convention Center in Hanoi, Vietnam, Tuesday, May 24, 2016. Obama gave a speech aimed at the people of Vietnam a day after announcing the lifting of a five-decade-old arms sales embargo that’s meant to help forge a new economic and security relationship with this young, fast-growing Southeast Asian nation. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama is given flowers by Linh Tran, the ceremonial flower girl, as he arrives on Air Force One at Noi Bai International Airport in Hanoi, Vietnam, Sunday, May 22, 2016. The president is on a weeklong trip to Asia as part of his effort to pay more attention to the region and boost economic and security cooperation. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama walks to his limousine as he arrives at Noibai International Airport in Hanoi, Vietnam May 22, 2016. (REUTERS/Carlos Barria)

U.S. President Barack Obama disembarks Airforce One as he lands at Hanoi ‘s Noi Bai International Airport May 22, 2016. (REUTERS/Hoang Dinh Nam)

U.S. President Barack Obama arrives at Noibai International Airport in Hanoi, Vietnam May 22, 2016. (REUTERS/Carlos Barria)

U.S. President Barack Obama visits the Jade Emperor Pagoda with Thich Minh Thong, abbot of the Jade Emperor Pagoda, second from right, and Duong Ngoc Dung, Professor at Ho Chi Minh City University of Social Sciences and Humanities, third from right, in Ho Chi Minh City, Vietnam, Tuesday, May 24, 2016. The Jade Emperor Pagoda is one of the most notable and most visited cultural destinations in Ho Chi Minh City. (AP Photo/Carolyn Kaster)

Air Force One with President Barack Obama on board taxis on the tarmac as he arrives in Hanoi, Vietnam, Sunday, May 22, 2016. Obama is beginning his Asia trip which includes a visit to Vietnam and Japan. (AP Photo/Na Son Nguyen)

President Barack Obama waves as he boards Air Force One, Saturday, May 21, 2016, at Andrews Air Force Base, Md. on his way to Vietnam. He’ll spend three days in Vietnam, with stops in Hanoi and Ho Chi Minh City, formerly Saigon, before heading to Japan for a summit of the Group of Seven industrialized nations and a historic visit to Hiroshima. (AP Photo/Evan Vucci)

President Barack Obama walks from Marine One to board Air Force One, in Andrews Air Force Base, Md, Saturday, May 21, 2016, on his way to Vietnam. He’ll spend three days in Vietnam, with stops in Hanoi and Ho Chi Minh City, formerly Saigon, before heading to Japan for a summit of the Group of Seven industrialized nations and a historic visit to Hiroshima. (AP Photo/Carolyn Kaster)

U.S. President Barack Obama waves as he walks out from the White House in Washington before his departure to Vietnam, U.S. May 21, 2016. (REUTERS/Yuri Gripas)

U.S. President Barack Obama disembarks Airforce One as he lands at Hanoi ‘s Noi Bai International Airport May 22, 2016. (REUTERS/Hoang Dinh Nam)