...reading comprehension skills are wonderful skills to have indeed.
Read the Mr. McPheron's assertion and then re-read the AVMA'a statement again, paying *special* attention to the segment that begins with the word "Except under special circumstances...".
Really, the only changes are Mr. McPheron's use of the word "urges" instead of "supports" and his use of the word "ban" instead of "prohibit".
Not very darn much difference in actual meaning, just a difference of fewer syllables, and perhaps more emphasis.

