41.   Inspectors noted that insufficiently clean air was entering the area, and that employees were touching nonsterile surfaces on their way in.

42.   Inspectors charged that Chiron ignored its own safety rules when it came to electrically disabling machinery and failed to provide standby help when workers entered potentially dangerous areas.

43.   Israel has been criticized by UN officials and humanitarian agencies for restricting search teams from entering the area after the fighting subsided last week.

44.   It could also enter areas it now avoids, like trading for its own account.

45.   Israeli soldiers and police were preventing Palestinians without permits from entering the area.

46.   It is impossible to calculate an accurate death toll because the Serbian police refuse to allow anyone to enter the area.

47.   It uses a motion-detecting system to tell when someone has entered an area, then snaps a photo of them.

48.   It is deeply shocking to enter an area like this without feeling that you should sink to your knees and apologize for being alive.

49.   It was the third convoy to enter the area in three weeks.

50.   Look for visual alerts through your browser that inform you when you are entering a secure area.