Thaksin last month confirmed that terrorists had plotted to launch an attack on an Israeli El Al airliner in Bangkok, while ministers in his Cabinet admitted authorities were on the hunt for smuggled missiles.
Although Thaksin later downplayed the missile concerns, saying such weapons smuggled into Thailand would be too old to be used accurately, the military was taking no chances.
On Thursday they began training thousands of taxi drivers and motorcyclists in how to spot shoulder-launched missiles and the terrorists who could use them.
In a further bid to soothe safety fears, top government and airport officials staged a walk-through at Don Muang on Friday to highlight security efforts.
"These will be the strictest security measures ever applied at our airport," its general manager Flight Lieutenant Yom Ngonrath said.
That means intensified random X-ray searches of checked baggage and inspections of catering services for biochemical threats, snipers on every rooftop and teams of undercover commandos.
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