Each year, the University of Southern California hosts the African Global Economic and Development Summit, bringing delegations from Africa to meet with business leaders, government officials and others in the U.S.
"Usually we get 40 percent that get rejected but the others come. This year it was 100 percent. Every delegation. And it was sad to see, because these people were so disheartened."
Flowers estimated that she lost about 100 attendees, including speakers and government officials. The countries affected included Sierra Leone, Guinea, Ghana, Nigeria, Ethiopia and South Africa.