Why Johnny can read in the Caribbean but can't in the United States?

Caribbean Net News:"The United States might be spending per capita, for the primary and secondary education of its pupils, more than any other country in the world, yet the result is less than satisfactory. The youngsters, who come from Jamaica, Barbados or, as matter of fact, Haiti, will climb very soon to the top of the class after some five to six months of transitional adaption."