I don't think Seoul is in the first strike artillery range, though I could be mistaken. Seoul is in the center of South Korea. Besides, family members are not allowed on hazardous duty tours. The article didn't say anything about removing troops from the DMZ. It says we're moving about 7,000 troops about 45 miles south of where they are now. It also says we have 37,000 troops in South Korea. That leaves about 30,000 troops right where they are. I don't know if those figures include our Navy off-shore, but I doubt it.
The tone of the article seems to suggest that Koreans don't like American troops being there, and that's why we're moving some of them. But... "We will make efforts to come up with steps in order for our people not to feel uneasy," the assistant defense minister, Cha Young Koo, said on YTN television news." Why would the people be uneasy over our troops moving out of Seoul if they don't want them there in the first place? Could it be the people really do want our troops there, but Ban Ki Moon, who was just appointed foreign minister the day before this announcement was made, and the majority of Roh Moo Hyun's administration want us out?