The article discusses the severe congestion at Lisbon Airport, framing it as an 'impossible task' due to a combination of new EU border control requirements, infrastructure limitations, and a significant increase in passenger numbers. It highlights that while the PSP (Public Security Police) is working to manage the flow, the underlying issue is a lack of physical capacity that cannot be solved without a new airport. The text also notes that despite these challenges, the PSP has increased its proactive enforcement, including interceptions and arrests for document fraud and drug trafficking.