Yelena sucks in a sharp breath, then mutters something filthy in Russian.

"And they did not warn you about what it could do?" she asks. It's sharp - but it's not particularly surprised. Her expression draws down into a frown, and she amends the question with, "What they could do."

(It's...not good to know that ADI is apparently stockpiling weapons that could burn people alive, exactly, but it is useful.)