[arubania2]

Not sure how it works in the US, but in my country the inflation-indexed bonds are still subject to the capital gains tax, so they offer a true hedge only up to a certain level.

Obviously still better than regular bonds in this regard.

[rottencupcakes]

Worse, subject to income tax.

[bombcar]

Federal bonds are subject to federal income tax - but exempt from state. This can be useful to some.

Munis are usually exempt from both but pay lower rates accordingly.