Will Moscow airport blast force global security rethink?
The explosion, at the Domodedovo airport in the city, killing at least 35 people and left more than 100 injured, several seriously.
Experts say it is significant that those who masterminded an attack to bomb the arrivals hall at the airport - Moscow's busiest - because it was easier target than the heavily controlled outputs in the region.
"The arrivals have always been considered" soft "area of the airport," said Richard Quest of CNN.
"Nobody is flying everywhere, all baggage is inspected since it had the planes and, above all, people leaving the airport. It 's very rare that you saw someone with a bag and return."
Who planted the bomb at the airport of Russia?
Moscow ran off injured
Russian PM addresses the question of bombing of the airport
31 killed in explosion at Moscow airport
Geddes security analyst told CNN: "The arrivals area is generally less secure than a majority of the public, friends and family to meet people ..
"And while departures are spread out, with plenty of check-in counters, baggage claim are Blow-Bang in the middle of the arrivals hall, with the largest concentration of people around him."
Geddes said the airport was probably chosen for a number of reasons, including the ability to inflict massive casualties - and terribly many ordinary people - both.
"This is terrorism in a very real sense: how, after the underpass [Moscow] attack in March last year, the audience was too scared to use the metro, are now outside the airport."
Quest said that security was already tight in the airports of Moscow, but will intensify in the coming days.
"I heard a lot of things to think about the facilities, the standard for comfort, is the way people treated [at Domodedevo] is not consistent with international standards.
"But the level of security since the events in Chechnya, and because of other security issues that Russia has faced, has always been the road.
"But the security situation has always placed emphasis on departures, not arrivals. Now, it must be reviewed"
Experts agree that airports around the world, not just Russia, is likely to review their procedures after the attack in Moscow.
"Absolute security will be strengthened everywhere," said Geddes.
But Philip Baum, editor of Aviation Security International, cautioned against any knee-jerk reaction.
"We need a common sense approach to this," he said. "There is no way to add huge additional layer of security and checkpoints for people to pass.
"We must recognize that most airports are not only the arrival and departure of passengers flying in the air. They are also complex retail, dining areas, businesses trying to attract people of outside. "
Baum notes that rather than installing more metal detectors and X-ray machines, airports introduce behavioral profiles.
"Passenger Profiling is the only proven method to combat a threat to aviation," he said and called on airports to keep an eye "for people who do not fit that seem to be okay."
Geddes, but said tougher restrictions in the arrival hall are inevitable.
"It must be some sort of meeting point, but maybe you can see in airports trying to control the number of people in this area, dividing it awesome or meeting places.
"You see the security checks to get better in the boardroom, but also increased visibility of security officers on the side of arrivals, because there is a perception that safety stops at customs, and is likely to change. "
And he says Quest airports can begin screening people who come to meet friends and family on their arrival.
"What happens is that the barrier can be further and further away, then it is no longer just leaving, but at the airport, or in some cases, on the road when you drive up to the terminal.
"In some places, such as Ben Gurion in Israel, is a form of security control on the highway, even before reaching the terminal. This is the future."