Q: I was in South Korea in 1952-53 and remember that Kaesong was in South Korea. Now it appears to be in North Korea. Did it change hands?

—Bob Johnson, Atlanta

A: The city of Kaesong was in South Korea after World War II, but was declared a part of North Korea by the Korean Armistice Agreement, which was signed on July 27, 1953, to end the Korean War. Kaesong is the southernmost city in North Korea, but is home to 123 South Korean factories as a "rare symbol of inter-Korean co-operation," the BBC reported. Those South Korean factories employ 53,000 North Korean workers in what is described as a joint industrial zone. The factories were shut down in April as diplomatic relations soured between the countries.

Q: I live in College Park, and twice in the last week, I received no mail. Two days in a row. The post office has not already cut back from six-day delivery, has it? I get enough junk mail that it’s possible for this to happen, but it’s not likely four days in the past week.

—Joe Cannon, College Park

A: Congress' budget, passed in the spring, blocked the U.S. Postal Service's plan to end Saturday mail delivery. The proposed five-day delivery was scheduled to begin next month, but wording in the new budget barred five-day mail service. The USPS was hoping to save $2 billion a year by ending Saturday mail delivery after it lost $15.9 billion in 2012. The USPS still would have delivered packages on Saturday, under the plan.

Andy Johnston wrote this column. Do you have a question about the news? We’ll try to get the answer. Call 404-222-2002 or email q&a@ajc.com (include name, phone and city).