In this April 6, 2013 photo, Joan Baez laughs while speaking to 

In this April 6, 2013 photo, Joan Baez laughs while speaking to former staff at the Metropole Hanoi in Hanoi, Vietnam.  The folk singer and social activist visited Vietnam recently for the first time since she came to the country in December 1972 as part of an American peace delegation. (AP Photo/Dinh Hau)
Associated Press
In this April 6, 2013 photo, Joan Baez laughs while speaking to former staff at the Metropole Hanoi in Hanoi, Vietnam. The folk singer and social activist visited Vietnam recently for the first time since she came to the country in December 1972 as part of an American peace delegation. (AP Photo/Dinh Hau)
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