Currently, foreigners must leave the country every 90 days to renew visas. Because we have missionaries from all eight Russian LDS Missions (our mission has about 70 missionaries) this is expensive and inconvenient for us: airflight, housing costs, etc. Meanwhile, the companionships here are disrupted and need rearranging. The Office Elders here make all the flight arrangements, being careful not to over-burden any one city or embassy with too many missionaries.
Unfortunately, problems have increased. Now the missionaries sent out are not getting their visas back in time. Their return airflight is wasted, and they are left stranded until the powers-that-be give back their passports/visas. We have six missionaries who were supposed to be back from Stockholm six days ago, and they're all waiting. Other missions have more missionaries who have waitied much longer.
On the upside, this is good for Temple work in Sweden! The missionaries generally do two sessions a day.