LUANDA (Reuters) -U.S. President Joe Biden landed in Angola on Monday for a visit focused on a U.S.-backed railway project and on the legacy of slavery, but his decision to pardon his son Hunter Biden threatened to overshadow the official agenda.

President Joe Biden has arrived for his long-awaited first presidential visit to sub-Saharan Africa to the cheers of thousands in Angola. His three-day visit to the southern African nation will

The president will also announce initiatives related to global health and security cooperation, among other things, a senior administration official said.