to accommodate more passengers as they try to balance strong travel demand with a lack of resources."The challenges we expect to see in the short term are outside of our control, and they principally relate to shortages, in resources in air traffic control," Walsh said. "We've already seen restrictions on capacity in the United States [and] we're seeing problems in Europe.
"Airlines and airports were criticized last year for not getting resources in place in time for the recovery," Walsh told CNBC. "[But] I think the airlines have done their bit. Most airports I think are in good shape," he added."Taking the overall picture into account ... we can be positive about 2023 and beyond," he said.
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