• A US federal government shutdown on Wednesday could delay flights and extend airport security lines. • Aviation groups warn of safety lapses and halted system upgrades during a shutdown. • Industry experts told BI that travelers should expect staffing shortages and delays.

For flyers, a government shutdown would result in nothing good.

Aviation groups across the country have expressed concerns about possible lapses in safety and stressful travel experiences for Americans if Congress fails to reach a last-minute solution to fund the federal government before midnight Wednesday.

Aviation experts told Business Insider that the most immediate concern for travelers is slightly longer security lines; however, long-term problems could include security employees walking off the job and sh

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