'This is why, for now, the use of the security scan is not obligatory'

From the brochure also located on the AMS website http://www.schiphol.nl/Travellers/At...curityScan.htm

There are also reports here from other US bound travellers that they were able to opt out. Did you use the term 'opt out' or did you phrase it differently? (English is generally very good in Holland because unlike in Germany their films etc from the US and UK are subtitled not dubbed)