21.   Late Thursday FBI agents were looking at tire tracks and what may have been foot prints several miles from the derailed train.

22.   Law officers at the time believed that the toddler was from Arizona but had only a set of tire tracks and two large bootprints as evidence.

23.   Morales, the nonpolitician, the amateur, left tire tracks on the backs of political pros from one end of the Lone Star State to the other.

24.   Now you can follow those same tire tracks in a much higher-performance machine, with the scenery flashing by a lot faster.

25.   Officials are testing his account by studying tire tracks at the crossing.

26.   Police said that when the man who is leasing the land for farming noticed tire tracks on the land, he investigated.

27.   Shell casings and tire tracks suggest they had been driven here by truck and shot at close range.

28.   So did the plaster casts taken of tire tracks in the area.

29.   Sometimes, after a night snowfall, tire tracks are not seen on streets until midmorning.