Church debt and Saracuda

Two brief topics here.
First, a cool article from the Salt Lake Tribune. "Every church in America is up to its eyeballs in debt...Only Mormons, Muslims, Amish and a few other groups are not financed this way...In fact, Mormons can't build anything without having the money in hand."
Very cool. And maybe a good example for its members.

The other totally unrelated topic which I found hilarious (and I apologize if I offend any Palin supporters, but here goes...)
Palin has a nickname--Sarah Barracuda. I'm not sure if her fans still call her that, but they did for a while.
When I first heard it, I immediately thought of the Heart song. So I wasn't surprised when the McCain campaign started playing that song (I also wasn't surprised when the Wilson sisters, who front Heart, told them to stop playing it.)
Like many rock songs, the lyrics are difficult to understand, so I'll post them here:

So this ain't the end -
I saw you again today
I had to turn my heart away
Smiled like the sun -
Kisses for real
And tales - it never fails!

You lying so low in the weeds
I bet you gonna ambush me
You'd have me down down down down on my knees
Now wouldn't you, barracuda?

Back over time we were all
Trying for free
You met the porpoise and me
No right no wrong, selling a song-
A name, whisper game.

If the real thing don't do the trick
You better make up something quick
You gonna burn burn burn burn it to the wick
Ooooooh, barracuda?

Sell me sell you the porpoise said
Dive down deep down to save my head
You...I think you got the blues too.

All that night and all the next
Swam without looking back
Made for the western pools - silly fools!

If the real thing don't do the trick
No, you better make up something quick
You gonna burn burn burn burn it to the wick
Ooooooohhhh, barra barracuda.

What does it mean? I don't know. But here's a picture:


So, why this nickname? And why this as an (unauthorized) theme song? Any ideas?