In December, a Texas A&M student signs a message board ahead of an "Aggies United" event in response to a speech by white separatist Richard Spencer. Spencer was scheduled to return to the school for a "White Lives Matter" rally on Sept. 11.
David J. Phillip/AP
Since it was built by the Texas A&M Engineering Extension Service in 1998, 90,000 emergency responders have come to "Disaster City" to climb over mangled steel and through derailed chemical trains.
Lauren Silverman /KERA