[allAfrica] African nations have “unlimited” potential to become “breadbaskets” that not only feed the continent but also a hungry world, Linda Thomas-Greenfield, the U.S. Ambassador to the United Nations, said during a policy address on food security in Accra earlier this month. The Cabinet member with the most broadest African experience and knowledge — she served as Assistant Secretary of State for Africa during President Obama’s second term — her three-nation trip was one of several to the continent in