Striking nurses demanding pay increases have disrupted travel, shutting down the main Berlin-Warsaw-Moscow railway line for 90 minutes at Konin, in central Poland, Dec. 16, and blocking main roads in Warsaw and the Czech border crossing at Cieszyn for several hours Dec. 18. Two nurses have been injured in clashes with police. The protests have gone on for more than three weeks, and disruptions may continue even if a settlement is reached because government concessions agreed to in July 1999 were never implemented.