BAMAKO, Mali The US Embassy in Niamey on Thursday condemned what it described as a terrorist attack targeting Diori Hamani International Airport and an adjacent military base in the Nigerien capital, calling the assault a threat to civilian safety and national security. A statement issued by the embassy said the attack that took place overnight from Jan. 28 to Jan. 29 “targeted critical infrastructure and threatens the safety of civilians and those working to support stability and security in