Bring back our girls: One year on

On the first anniversary of the day 276 schoolgirls were snatched in the middle of the night from their boarding school in northeastern Nigeria, President-elect Muhammadu Buhari says he must be honest about the prospects of getting the 219 girls who are still missing back to their families.We do not know if the Chibok girls can be rescued. Their whereabouts remain unknown, Buhari said in a statement. As much as I wish to, I cannot promise that we can find them.On Tuesday, 219 girls dubbed Chibok ambassadors marched solemnly through Abuja, Nigeria's capital, each carrying a placard with the name of the missing girl they represent.

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People march during a silent protest calling on the government to rescue the kidnapped girls of the government secondary school in Chibok, who were abducted a year ago, in Abuja, Nigeria, Monday, April 13, 2015. Nearly 300 schoolgirls from Chibok were abducted in a mass kidnapping on the night of April 14-15. Dozens escaped on their own but 219 remain missing. (AP Photo/Sunday Alamba)
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Civil society groups march past billboard of out-going Nigerian President Goodluck Jonathan to press for the release of 219 schoolgirls abducted by Boko Haram Islamists during a demonstration in Abuja, on April 14, 2015. Nigeria's president-elect Muhammadu Buhari on Tuesday cautioned he could not make promises on the return of 219 schoolgirls kidnapped by Boko Haram, as the country marked the first anniversary of their abduction.AFP PHOTO/STRINGER
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People march during a silent protest calling on the government to rescue the kidnapped girls of the government secondary school in Chibok, who were abducted a year ago, in Abuja, Nigeria, Monday, April 13, 2015. Nearly 300 schoolgirls from Chibok were abducted in a mass kidnapping on the night of April 14-15. Dozens escaped on their own but 219 remain missing. (AP Photo/Sunday Alamba)
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Civil society groups press for the release of 219 schoolgirls abducted by Boko Haram Islamists during a demonstration at ministry of education in Abuja, on April 14, 2015. Nigeria's president-elect Muhammadu Buhari on Tuesday cautioned he could not make promises on the return of 219 schoolgirls kidnapped by Boko Haram, as the country marked the first anniversary of their abduction. AFP PHOTO/STRINGER
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Chairman of the Chibok Community in Abuja, Hosea Abana, during a silent protest calling on the government to rescue the kidnapped girls of the government secondary school Chibok, which were kidnapped a year ago, the protest took place in Abuja, Nigeria, Monday, April 13, 2015. (AP Photo/Sunday Alamba)
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A girl under the auspices of a civil society group press for the release of 219 schoolgirls abducted by Boko Haram Islamists during a demonstration at ministry of education in Abuja, on April 14, 2015. Nigeria's president-elect Muhammadu Buhari on Tuesday cautioned he could not make promises on the return of 219 schoolgirls kidnapped by Boko Haram, as the country marked the first anniversary of their abduction.AFP PHOTO/STRINGER
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Young girls known as Chibok Ambassadors, carry placards bearing the names of the girls kidnapped from the government secondary school in Chibok, a year ago, during a demonstration, in Abuja, Nigeria, Tuesday, April 14, 2015. Never to be forgotten. The new slogan adopted Tuesday is a sad concession that many believe few of the Chibok girls kidnapped one year ago by Islamic extremists will ever find their way home. On the first anniversary of the day 276 schoolgirls were snatched in the middle of the night as they prepared to write science exams at their boarding school in northeastern Nigeria, President-elect Muhammadu Buhari said he cannot promise to find the 219 who are still missing. (AP Photo/Sunday Alamba)
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People march during a silent protest calling on the government to rescue the kidnapped girls of the government secondary school in Chibok, who were abducted a year ago, in Abuja, Nigeria, Monday, April 13, 2015. Nearly 300 schoolgirls from Chibok were abducted in a mass kidnapping on the night of April 14-15. Dozens escaped on their own but 219 remain missing. (AP Photo/Sunday Alamba)
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TO GO WITH AFP STORY BY PHIL HAZLEWOOD<br />(FILES) A file screengrab taken on May 12, 2014, from a video of Nigerian Islamist extremist group Boko Haram obtained by AFP shows girls, wearing the full-length hijab and praying in an undisclosed rural location. Nigeria on April 14, 2015 marks the first anniversary of Boko Haram's abduction of 219 schoolgirls from the northeastern town of Chibok, as part of a series of events planned around the world. The commemoration and renewed calls for their release came as Amnesty International said the Islamists had kidnapped at least 2,000 women and girls since the beginning of last year. AFP PHOTO / BOKO HARAM <br />RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / BOKO HARAM" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS
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NEW YORK, NY - APRIL 13: Women attend a rally bringing attention to the one year anniversary of the kidnapping of hundreds of Nigerian school girls on April 13, 2015 in New York City. The terrorist organization Boko Haram kidnapped more than 220 girls last year, many of whom remain missing. Andrew Burton/Getty Images/AFP
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NEW YORK, NY - APRIL 13: Brianna Askew, a junior at St. Joseph's High School in Brooklyn, ties a red and purple ribbon to a tree during a rally bringing attention to the one year anniversary of the kidnapping of hundreds of Nigerian school girls on April 13, 2015 in New York City. The terrorist organization Boko Haram kidnapped more than 220 girls last year, many of whom remain missing. Andrew Burton/Getty Images/AFP
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NEW YORK, NY - APRIL 13: A red and purple ribbon is tied to a tree after a rally bringing attention to the one year anniversary of the kidnapping of hundreds of Nigerian school girls on April 13, 2015 in New York City. The terrorist organization Boko Haram kidnapped more than 220 girls last year, many of whom remain missing. Andrew Burton/Getty Images/AFP
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NEW YORK, NY - APRIL 13: U.S. Representative Carolyn Maloney (D-NY 12th District) speaks at a rally bringing attention to the one year anniversary of the kidnapping of hundreds of Nigerian school girls on April 13, 2015 in New York City. The terrorist organization Boko Haram kidnapped more than 220 girls last year, many of whom remain missing. Andrew Burton/Getty Images/AFP
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Protesters with the "Bring Back Our Girls" campaign stand in front of the Eiffel tower in Paris on April 14, 2014 to mark the first anniversary of the kidnapping of over 200 Nigerian schoolgirls by Boko Haram militants. AFP PHOTO / MARTIN BUREAU
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Former French first lady Valerie Trierweiler poses during the "Bring Back Our Girls" campaign in front of the Eiffel tower in Paris on April 14, 2014 to mark the first anniversary of the kidnapping of over 200 Nigerian schoolgirls by Boko Haram militants. AFP PHOTO / MARTIN BUREAU