Canon. After the outbreak the United States government declared Knox Country an exclusion zone, quarantined it and kept information from leaving. The army put up fences and fortified border posts, and by 9 July the only way in or out was through a few guarded checkpoints. General John McGrew ran the operation and gave his addresses from the press area of the main camp on Dixie Highway south of Louisville, which is why his voice turns up on both TV and radio. Louisville itself was overwhelmed by 14 July and later folded into the zone.
Canon, from LBMW Kentucky Radio (93.2). Reporter Frank Hemingway reached the camp on the morning of 9 July and spent five days asking why residents were being kept in the dark. On 14 July a soldier fired on two unarmed civilians, protests followed, then warning shots and tear gas; two people were confirmed dead. That night the zone was breached and Frank was last heard screaming on air. His partner Jackie Jaye reported on 15 July that the infected had come "through the wire" and the army had pulled back, and on 16 July that she had caught the illness herself. Her sign-off is the last LBMW voice.
In-game. The Louisville Border Camp is still there to loot: an army checkpoint with offices, a medical tent, barracks and an armoury, and a refugee camp to its north with the press area and an LBMW radio shack. The gates do not open, but the fence has a breach on the eastern side, reached by turning east through the train yard. Two smaller posts on Louisville Road and Ernest Cooper Road need a sledgehammer from the south. Zombie counts around the main camp reach the thousands on busy settings; see loot locations.
Interpretation. A cassette found in Muldraugh claims the area was once used for military tests, with cattle deaths and a strange taste in the water. Players read it as a hint that the army caused the Knox Event. Nothing in the broadcasts confirms it, and McGrew's "America is safe" reads as either ignorance or a lie depending on who you ask.