Curious Assassin Bug

Some kids and I discovered an extremely bright orange insect. After some investigation, we have decided that it must be a sort of assassin bug. But now we have some more questions.

It is almost completely bright orange with some small bits of red and yellow on it. The top of its broad tail did have some dark spots, but nothing like the pic on the assassing bug page here.

We want to know the purpose of its tail. When we discovered this unusual crawlie, it was carrying a dead spider on the tip of its tail. It almost looked as if it were using the dead spider as a sort of camouflage.

The tail curls upward, almost like a scorpion's tail section.

Any additional tidbit will be appreciated most sincerely.

I do not have a decent photograph to submit as my camera phone was the only thing I had to photograph it with :(

THANKS!