The Crossair accident
That accident happened on a VOR approach to RW28, which had a steep approach angle and was originally only used in case of strong west winds - where the angle/ROD was not a problem due to a low GS.
When politics decreed that RW28 would be used as a standard approach RW, problems started occuring because no wind or light tailwind conditions could happen. This made a big difference to the ROD calculation (those pilots who made one...) and needed careful preparation.
In the case of the RJ crash, the pilots flew outside their company procedures and busted minimum - possibly aggravated by a cavalier approach to the ROD problem. I don't think this accident can be laid directly at the door of the politicians however.
FC.