The fact
Located near the Natanz uranium enrichment site, it is fortified and hard to access.
This facility reignites concerns about Iran's nuclear program.
3 sources — click a link to read an article on the topic:
Why it matters
Ce complexe pourrait permettre à l'Iran de contourner les inspections internationales et d'accélérer son programme nucléaire, ce qui aggraverait les tensions régionales et internationales.