11.   Baird said experts had identified illiteracy and addictions as among the greatest obstacles keeping longtime welfare recipients from entering the work force.

12.   According to Beem, the most difficult part and the greatest obstacle to hang gliding is the training.

13.   But he said that as far as he knew, the greatest obstacle to fighting the fire at the Harlem store came from gunfire.

14.   But perhaps the greatest obstacle is that local officials do not want to admit that prostitution, drug abuse or blood selling are occurring on their watch.

15.   But the problem with Pike was far from the greatest obstacle facing the mifepristone project.

16.   But they also warn that Cuomo may be the greatest obstacle to his own re-election.

17.   For him the greatest obstacle had been bridged.

18.   Hebron has become the greatest obstacle in negotiations to widen Palestinian autonomy on the West Bank.

19.   In fact, protectionism of Western economies is the greatest obstacle to cashing in on the opportunities created by the emergence of those markets, he suggests.

20.   In fact, the partners say, their greatest obstacle is often the INS itself.