Yemen will stop issuing visas to foreign visitors upon arrival to try to prevent Islamic militants from sneaking in to meet and train with an al-Qaida offshoot.

Visitors requiring visas will instead have to apply for them at Yemeni embassies abroad before traveling in an effort to better screen out potential militants.

http://news.yahoo.com/s/ap/20100121/ap_on_re_mi_ea/ml_yemen

Maybe the United States could learn something from Yemen: be more careful about who you let in to the country.