This article, Daniel Borenstein: Disclose full bond costs, is an actual case study of such situations. Just to give you a sample of the article:
For example, when voters passed Measure J in 2005, they were told that bond program would authorize the sale of up to $400 million in bonds. What they weren't told is that the three prior voter-approved measures — Measure E in 1998, Measure M in 2000 and Measure D in 2002 — had authorized another $490 million. Measure J would bring the total to $890 million.
That's only for the principal. Voters weren't told that when the interest payments were added in, the cost would rise to about $2.2 billion.
We need many more articles like this one. Are you listening San Jose Merky News? Probably not, which is why we are canceling the paper.