[This, is very concerning. For all the group thought they knew going down there, yet again they all come back with -their lives, granted- but nothing more in terms of answers.]

He needs the energy, what does anyone need energy for? Yet, he didn't take it from the already degrading power cores. Why do you suppose that is?

[He knows how he would answer this question, yet he wants to see if Veronica has the same logic; Riki still has an interest in keeping the Tower running, being it's Architect.]