An aggressive new approach to security is threatening chaos in international flights to the US - with planes being refused permission to land or diverted for rescreening of passengers and cargo.
The US, which is on the second-highest security alert status after warnings of planned terrorist attacks, has already shown its determination to enforce new airline security rules.
These include ordering a Mexi-can passenger jet to turn around mid-flight and imposing landing restrictions on at least six other incoming flights in the past week.
The airline security crackdown was part of an unprecedented security operation in which sharpshooters, warplanes and thousands of police were mobilised to thwart any attack on celebrations from New York to Las Vegas.
Officials were so worried about possible attacks on at least five foreign flights that landed in the US - including in Washington and Los Angeles - that they took the aircraft to remote locations away from the main terminals and re-screened the passengers before allowing them to leave.
http://www.smh.com.au/articles/2004/01/01/1072908856759.html