[bvdbijl]

I think you would want to inspect the source code before you use a third-party library in a case like that

[lamby]

The whole point is that third-party source code can change without your knowledge (or permission, etc). Or, worse, the third-party can simply be hacked.

[ceejayoz]

Well, only if you're linking it off someone else's servers.

jQuery is third-party source code too, but I can host it myself.

[lamby]

Obviously. This was a response to OP putting forward a hosted solution.