Performing Terrorist Jobs Americans won't do -- US Diversity Visas for Yemen?

Ah the wonders of diversity. As reported by the blogprof - Hope? State Department Using 'Diversity Visas' to Encourage Immigration to U.S. from Terror-Ridden Yemen.
the blogprof quotes CNS News:

The State Department has awarded 1,011 special “diversity visas” allowing Yemeni nationals to immigrate to the United States since 2000, the year 17 U.S. sailors were killed when the USS Cole was attacked by terrorists in the Yemeni port of Aden.

The "diversity visas" are designed to encourage immigration from countries that do not otherwise send significant numbers of immigrants to the United States.

...That the U.S. would encourage immigration from Yemen during the past decade is of interest because of the terrorist problem in that country.

I guess we need these diverse immigrants because after all, there are some terrorist jobs that Americans just won't do, and these immigrants will.