"Sir, you can't be serious! They're loose canons! One is a homicidal threat to humanity, and the other is scared of their own shadow! You can't seriously be considering willing to risk the lives of possibly the entire world by trusting them!"
"Shut the hell up, MacNamara. We need all the help we can get with this case, and I'll be damned if we all die because we were too afraid to take a chance. Now get the hell outta my sight, I've got work to do."
When Barton is compromised, Fury decides that the Avengers might need a little extra help. When the team's already comprised of an old man from the twenties, a red headed assassin in a catsuit, a rich guy in an expensive metal suit, an alien with a god complex, a scientist with anger issues and a currently mind controlled guy who's good with a bow and arrow, what's the addition of two extremely codependent and slightly homicidal children gonna hurt?