[astura]

>Can you send a letter thousands of miles for only 61 cents?

Letter, no. 61 cents is the post card rate, so you can send a post card thousands of miles for that. If you introduce an outside envelope its 78 cents to mail that thousands of miles, up to 1oz.

[systemtest]

That is still very impressive from my European viewpoint.

[astura]

It's impressive to me too, as an American. Especially when you consider that rates include from the east coast of a continent to the west coast, faraway islands (Hawaii, Guam, American Samoa) as well as closer islands (Puerto Rico, US Virgin Islands).