John McCain actually said...

the Pentagon does not have a good record on this issue as the costs have escalated from around $6 billion to at least $16 billion.

McCain criticizes the Pentagon's escalating costs.

02/08/2012

More John McCain Quotes

there are more legal constraints because it does not require congressional approval

I think it is fair to say that Guantanamo at this stage is an unmitigated disaster for the United States.

It is not rocket science.

Their continued detention... is doing more harm than good.