The profit margins in shipping being as slim as they are, pilots often have to deal with ships so laden (mostly with West African bauxite for the local aluminium smelter) that they have barely a one-foot clearance from the sea-bed.
Holder, that tests the constitutionality of Section 5 of the Voting Rights Act, which requires state and local governments, primarily in the Deep South, with a history of discrimination to obtain "pre-clearance" from the Justice Department before making any changes affecting voting.