WorldNetDaily reports:

Medical clinics across the country have been flooded with requests from foreign nationals from Pakistan and other Muslim countries to help them gain visa entry into the U.S. as patients.

The post-9/11 trend concerns authorities who fear al-Qaida could be using the medical industry to infiltrate terrorist cells into the country.

Some clinics have sponsored foreign patients only to have them fail to show up at their facilities.

The Caster Eye Center in Beverly Hills, Calif., for example, stopped granting such foreign requests after a couple of no-shows.