The sight of long queues forming at US airports is nothing new.

In fact, thanks to the mass consumption of flight travel and its associated security risk, snaking security lines are almost the new normal.

So, with 234million passengers projected to fly this summer, the Transportation Security Administration has boosted its workforce by thousands to cope with demand - and stem criticism in the process.

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Number crunching: 2.54million are expected to travel via the US each day from June-August

Efficiency: The TSA has previously come under fire for snaking lines across airports. This picture shows a monster queue at Chicago Midway last year

The Department of Homeland Security agency, which ensures the safety of those using communal transport across America, has drafted-in 2,000 new officers to help process the numbers, which are estimated at nine million more than 2016.

They've also added 50 canine teams, who'll help process the hordes of people passing through customs.

To streamline the process further, the agency has also joined forces with airlines to install automated screening lanes in some of America's most heavily-used portals.

These include Chicago's O'Hare International Airport, New York City's John F. Kennedy International Airport, Los Angeles International Airport and Hartsfield–Jackson Atlanta International Airport.

'As we approach the summer break, securing the travel of millions of passengers daily remains our top priority,' said TSA Acting Administrator Huban A. Gowadia.

The TSA has installed automated screening lanes at the nation's busiest airports

Last summer saw 224.8million travelers pass through US airports

'It is well known that terrorists continue to focus on aviation, which is why TSA continues to focus on providing robust security screening. TSA takes many security measures, seen and unseen, while working closely with industry partners such as airlines and airports to enhance the traveling experience and ensure every passenger arrives to their destination safely.

'TSA is tasked with a complex, critical security mission that can only be accomplished through close collaboration with stakeholders and partners. We will not compromise our security mission of protecting air travelers as we face an evolving threat by a determined enemy,' she said.

Last summer saw 224.8 million travelers pass through US airports.