1.   Israeli checkpoints blocked travel between West Bank cities, and tanks remained dug in opposite the towns, which are under Palestinian self-rule.

2.   After Arabs and Jews exchanged gunfire last month, Israeli checkpoints blocked his family at their farm.

3.   Barbed wire checkpoints block most intersections.

4.   Chechen command posts dot the outskirts of town, while Russian checkpoints block the road leading into it.

5.   Some people heading for Pakistan have been blocked by checkpoints set up by Taliban leaders that only let through people with passports, he said.