Z:gnu-www-ja-gpl-faq--aba576-Some distributors of GPL'd sof/en

Some distributors of GPL'd software require me in their umbrella EULAs or as part of their downloading process to &ldquo;represent and warrant&rdquo; that I am located in the US or that I intend to distribute the software in compliance with relevant export control laws. Why are they doing this and is it a violation of those distributors' obligations under GPL? (#ExportWarranties)