“Careful What You Wish For”: Maura Tierney Reveals the ‘Law & Order’ and ‘SVU’ Crossover’s Unexpected Connection to ‘ER’

No one can stop talking about the action-packed crossover event between Law & Orderand its similarly successful spin-off, Law & Order: Special Victims Unit, but who can blame them? Titled "Play with Fire Part 1 and Part 2," the episode aired on Thursday, April 17, and in it, Maura Tierney, who joined the original show this season as Lt. Jessica Brady, finally got to be a badass –physically, for the first time. With the two-hour event now over and done with, the actress broke it down to Deadline, comparing a few details to her stint on ER, including one major unexpected connection.