On Tuesday of this week Dallas Independent School District spokesman Jon Dahlander responded to questions I had asked him last week for my column this week about per-pupil expenditures at high school campuses. Unfortunately, his response by e-mail reached me several days after my deadline had passed. Mr. Dahlander is a busy man these days and has a lot more to do in this world than answer questions for me, so I won't hold it against him that he replied after my deadline.I only regret that I wasn