$8.$ Effects of September $11.$ In August $2001,$ Ohio,

Inc., considered establishing a manufacturing plant

in central Asia, which would be used to cover its

exports to Japan and Hong Kong. The cost of labor

was very low in central Asia. On September $11,$

$2001,$ the terrorist attacks on the United States

caused Ohio to reassess the potential cost savings.

Why would the estimated expenses of the plant increase after the terrorist attacks?