It definitely depends. I took ds through in a mei tai and wasn't asked to take him out gong one way, but then was asked to take him out going the other way.
If they asked everyone to remove their shoes/babies/ and searched everyone's luggage thoroughly etc. there would be much longer waits then there already are. I think the point is that most people aren't terrorists and it's all about measured risks. Most people with proper identification for themselves and their infants who have their own infants with them are probably less likely to intend to blow up the plane. These things are still left to the individual descretion of the security guard.
If they asked everyone to remove their shoes/babies/ and searched everyone's luggage thoroughly etc. there would be much longer waits then there already are. I think the point is that most people aren't terrorists and it's all about measured risks. Most people with proper identification for themselves and their infants who have their own infants with them are probably less likely to intend to blow up the plane. These things are still left to the individual descretion of the security guard.







