This shouldn't surprise anybody. First, the methods for maintaining them are straight out of thr 20th century. Second, most agencies are using computers that can't run up-to-date data bases and calculator programs. And finally, many who are responsible for the budgets are more politically motivated that managerial.
The GAO said those weaknesses also:
Affect the federal government’s ability to reliably measure the full costs and financial performance of certain programs and activities.
Impair the federal government’s ability to adequately safeguard significant assets and properly record various transactions.
Hinder the federal government from having reliable financial information to operate in an efficient and effective manner.
Full story @ GAO: Many federal financial books are so sloppy they can't be audited - Watchdog.org
The GAO said those weaknesses also:
Affect the federal government’s ability to reliably measure the full costs and financial performance of certain programs and activities.
Impair the federal government’s ability to adequately safeguard significant assets and properly record various transactions.
Hinder the federal government from having reliable financial information to operate in an efficient and effective manner.
Full story @ GAO: Many federal financial books are so sloppy they can't be audited - Watchdog.org