Soulskill from the lords-of-cobol-hear-my-prayers dept.
MrMetlHed writes "A portion of this Reuters article about the Pentagon's inability to manage paying soldiers properly mentions that their payroll program has 'seven million lines of Cobol code that hasn't been updated.' It goes on to mention that the documentation has been lost, and no one really knows how to update it well. In trying to replace the program, the Pentagon spent a billion dollars and wasn't successful."
Computers are unreliable, but humans are even more unreliable.
Any system which depends on human reliability is unreliable.