I Circle the World With One Breath

Last week's riddle and answer:

 I am protected by masked men
Yet stolen all the time
I am anchored on a diamond
And stepped upon by nine


Answer: Home plate

Amy B was first to guess "Baseball plate," but judges have ruled that the victory goes to Leslie who wrote in with the more specific "Home plate" answer.

Tough loss, Amy.  Better luck with this week's:




With one breath I circle
the world, and have arms
But no legs. In ages past
It was a charge that could harm.



What am I?