31.   Terrorist hijackings or airline explosions in the past have led to periods of tighter airline security, followed quickly by periods of relaxation and colossal carelessness.

32.   The assessment is widely shared because the federal government, which has assumed responsibility for airline security, has so much yet to accomplish.

33.   The first time, they said, he had aroused so much suspicion at the gate that airline security and French police officers questioned him at length.

34.   The halting efforts to plug holes in the student visa system reflect the overall difficulty of improving domestic defense, most notably airline security.

35.   The international community sought common ground, improved airline security, and found it possible to deter and limit such terrorist incidents.

36.   The sky marshal program in particular is an example of how the country has ignored airline security, he said.

37.   Then, as Congress and President Bush debated airline security, Rome said calls began pouring in.

38.   Then, grief-stricken but resolved, she began evolving into the nonstop watchdog, lay expert and gadfly on airline passenger security that she is now.

39.   To cite a grim example, think of how terrorists have, using comparatively limited funds, continually subverted X-ray machines and other forms of airline security.

40.   To be sure, the president proposed some steps that could be implemented quickly and would immediately improve airline security.