"Nothing..." Bea lied easily with the hint of a smile. "I'm just surprised. You look different." The understatement of the year, Bea thought. "If you don't mind me asking--" she started and gestured to Agent Nelson's body.
She would need to ask Agent Coulson about her suspicions. SHIELD must have done testing and evaluations when Agent Nelson turned up like this. If she had in fact developed a mutant ability, then there would be people to notify -- people she had to notify.