Շաբաթվա պատկերները՝ մարտի 26 - մարտի 30, 2012թ.

U.S. President Barack Obama covers the microphone as he arrives at the plenary session of the Nuclear Security Summit at the Coex Center in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Susan Walsh)

U.S. President Barack Obama, left, chats with Russian President Dmitry Medvedev during a bilateral meeting at the Nuclear Security Summit in Seoul, South Korea, Monday, March, 26, 2012. (AP Photo/Pablo Martinez Monsivais)

U.S. President Barack Obama, left, and Russian President Dmitry Medvedev stand together at the end of a bilateral meeting at the Nuclear Security Summit in Seoul, South Korea, Monday, March 26, 2012. (AP Photo/Pablo Martinez Monsivais)

U.S. President Barack Obama arrives to speak at Hankuk University in Seoul, South Korea, Monday, March 26, 2012. (AP Photo/Susan Walsh)

South Korean President Lee Myung-bak looks for his toe marks as he waits for leaders to arrive for a welcome ceremony for the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Monday, March 26, 2012. (AP Photo/Susan Walsh)

South Korean President Lee Myung-bak changes places with Australian Prime Minister Julia Gillard during a welcome ceremony for the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Monday, March 26, 2012. (AP Photo/Susan Walsh)

U.S. President Barack Obama and South Korean President Lee Myung-bak, look for their marked positions on the floor as they arrive for a group photo session for the Nuclear Security Summit in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Mar

U.S. President Barack Obama, third from left in front row, and South Korean President Lee Myung-bak, fourth from left in front row, wave along with other leaders during a group photo session for the Nuclear Security Summit in Seoul, South Korea, Tuesday,

South Korean President Lee Myung-bak, left, and President Barack Obama wave during a welcome ceremony for the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Monday, March 26, 2012. (AP Photo/Susan Walsh)

U.S. President Barack Obama, left, laughs with Kazakhstan President Nursultan Nazarbayev, center, and Russian President Dmitry Medvedev during their joint statement at the Nuclear Security Summit at the Coex Center, in Seoul, South Korea, Tuesday, March 2

U.S. President Barack Obama, left, gets a reaction from Russian President Dmitry Medvedev, right, after jokingly covering up his microphone as they attend the opening plenary session at the Nuclear Security Summit at the Coex Center, in Seoul, South Korea

Pakistani Prime Minister Yousuf Raza Gilani, left, talks with Indian Prime Minister Manmohan Singh as they attend a working lunch at the Nuclear Summit at the Coex Center, in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais)

Pakistani Prime Minister Syed Yusuf Raza Gilani, left, speaks to U.S. President Barack Obama during their bilateral meeting on the sidelines of the Nuclear Security Summit in Seoul, South Korea, Tuesday, March 27, 2012. (AP Photo/Pablo Martinez Monsivais)