Jack says something is as likely to happen as the Washington Capitals winning the Stanley Cup, which the Capitals won in 2018.
It's well-known that many US TV series are shot in Canadian cities, especially Toronto, Ontario. However, it's still amusing to see well-known locations pop up that give the game away. In this episode, the arrest of the final bomber occurs in the plaza outside the iconic Toronto's Roy Thomson Hall, with its unique circular glass sloping structure being especially familiar to fans of the annual Toronto Film Festival--definitely not Washington DC.
The "Oklahoma City bombing" happened on April 19, 1995 at 9:02am killing 168 people including children.
The Oklahoma City bombing drove a Ryder van into the north entrance of the federal. (Same as used in this episode)
The Oklahoma City bombing used a homemade bomb made from ammonium nitrate fertilizer, diesel fuel, and other chemicals. (This episode uses the same type bomb.)