UNITED STATES visitors are to be screened for radiological materials by border inspectors, in an effort to counter terrorism. The US Customs department has confirmed that every person now entering the country will be screened by at least one inspector with a special radiation detector, affecting 500,000 people a day arriving at airports, sea ports and land border crossings. Presently, customs agents screen arrivals on a more-or-less random basis - a move introduced following the 11 September attacks. US Customs claims that the extra screening will not cause more delays for travellers. Cargo arriving in the US by sea or air will still only be checked on an ad-hoc basis, though there are plans to have all cargo screened within a year. http://www.customs.ustreas.gov