21.   The roadblocks were up for about an hour and created six-mile traffic backups.

22.   The rebel roadblock was less than five miles from a large Colombian army base, where soldiers ran their own checkpoint, eerily similar to that of the guerrillas.

23.   The roadblock is the federal law limiting cable rates and forcing cable operators to carry local channels no matter how small or obscure.

24.   The roadblock here has been, from the beginning, the refusal of the government of Iraq to participate in this program.

25.   The roadblock was bombed on Saturday after the shooting, and again on Sunday, Yonts said.

26.   The roadblocks are both regulatory and scientific.

27.   The roadblocks are even greater for female politicians who are black or indigenous.

28.   There are other roadblocks that each side could construct.

29.   There are roadblocks, however.

30.   There may be roadblocks up ahead.