Not to be all gross or anything, but smuggling water seems like it would be ridiculously easy... just drunk a bunch before visiting and hang out for a while.<br/><br/>Now, whether that means Katara would be able to make use of that is another story... for all I know the sisters are chi-blocking her every time anybody in the capital goes to pee.<br/><br/>Also, in theory, couldn't Katara just pull water directly out of the Lee's?  Like with the plants?  Not saying she'd necessarily know how... but is there a reason she's not just the most powerful entity on the planet excepting the Avatar? *laughs*  I mean really, how did Fire ever beat Water?