"Close the canyons on Inauguration Day weekend? Might as well set fire to the treasury and be done with it."
Inauguration Day is a Terran Dominion holiday. On Inauguration Day weekend, tourism is known to spike, with terrans visiting worlds such as Choss for getaways and vacations.
Bogdanove, Kal-El. "Frenzy." (Feb. 28, 2013). Blizzard Entertainment. StarCraft Lore: Frenzy Accessed 2013-02-28.