The US Supreme Court on Monday refused to consider a Michigan blogger's challenge of the use of full-body scanners and thorough pat-downs at airport checkpoints.

Without comment, the court declined to take up Jonathan Corbett's complaint that the Transportation Security Administration's use of the screening techniques violated passengers' protection against illegal searches under the Fourth Amendment of the US Constitution.

The TSA had in October 2010 directed the use of the scanners, sometimes known as advanced imaging technology, which some critics fear could emit too much radiation.

In addition, the TSA authorised enhanced pat-downs, which could include the touching of genitals, buttocks and breasts, for passengers unwilling to go through the scanners. Passengers who rejected both procedures would not be allowed to fly.

Corbett, who maintains the "TSA Out of Our Pants!" blog, complained that the TSA lacked unilateral authority to adopt the procedures.

The 11th US Circuit Court of Appeals in Atlanta had rejected Corbett's case, saying a lower court correctly concluded that it did not have jurisdiction to review a TSA order.

The case is Corbett v. US, US Supreme Court, No. 11-1413. – Reuters