TSA lines are experiencing issues, but the severity of the problem varies by location, with some airports reporting shorter lines and others facing long wait times. The situation is being addressed in a senate hearing with nominees from FEMA and TSA, and experts are suggesting alternatives such as TSA PreCheck to mitigate delays. It is unclear if the issues with TSA lines are improving or worsening overall, with some reports indicating easing wait times and others describing the air travel system as being in crisis.