On Wed, 02 Apr 2014 21:37:01 -0400, Poquito Loco
wrote:

Insurance is available at USPS. Today I dropped off a package and asked the lady at the counter if
she knew why the US Mint was using UPS instead of USPS. She didn't know either.

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Yes, you can insure and request a tracking number. Rates seem to be
cheaper than UPS in my experience although I think UPS might be a tad
faster.