'Disappointed' over Ugandan president signing anti-gay law
John Abdallah Wambere fled homeland in February
Those convicted of ‘aggravated homosexuality’ face life in prison
'An unfortunate picture of the U.S.'
‘Protection of human rights’ cited during press conference
Obama seeks to strengthen economic ties with continent
African leaders to attend D.C. gathering in August
‘LGBT rights are human rights’
Singer to take stage for anti-LGBT Gambian president
Comments come during week-long Africa trip
