In this Monday, January 27, 2014 photo, Afghan refugee girl, Madina Juma'a, 4, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Saturday, January 25, 2014, photo, Afghan refugee girl, Gullakhta Nawab, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee girl, Gul Bibi Shamra, 3, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee girl, Safia Mourad, 4, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee girl, laiba Hazrat, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Monday, January 27, 2014 photo, Afghan refugee boy, Allam Ahmad, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee girl, Robina Haseeb, 5, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee boy, Hayat Khan, 8, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Saturday, January 25, 2014 photo, Afghan refugee girl, Zarlakhta Nawab, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Sunday, January 26, 2014 photo, Afghan refugee boy, Noorkhan Zahir, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee boy, Awal Gul, 12, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Monday, January 27, 2014 photo, Afghan refugee girl, Khalzarin Zirgul, 6, holds her cousin, Zaman, 3 months, as they pose for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Sunday, January 26, 2014 photo, Afghan refugee boy, Ibraheem Rahees, 8, poses for a picture, in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Saturday, January 25, 2014 photo, Afghan refugee girl, Nazmina Bibi, 7, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)

In this Friday, January 24, 2014 photo, Afghan refugee girl, Naseebah Zarghoul, 6, poses for a picture, while playing with other children in a slum on the outskirts of Islamabad, Pakistan. (Photo by Muhammed Muheisen/AP Photo)