The U.S. will require travelers from Zambia and Malawi to post bonds ranging from $5,000 to $15,000 for certain visa classes. The move is part of a pilot program tied to high overstay rates. Applicants must now prove purpose and intent with greater financial commitment. The policy risks deterring business and tourist visits, while raising diplomatic eyebrows. Regional governments may seek reciprocal measures or challenge the move at the WTO.