Rather than reassure her, the security guards become the cause of one more fear for Miranda. They also represent another impediment between her and help, as she is no longer able to walk into the hospital and see Peter. She realizes that soon she may not be able to go anywhere on her own, which is part of why she doesn’t tell Laura, but the bigger reason is that Miranda is still trying to make sense of what has happened to her and the guards’ advice. Her perceptions of the world are changing so rapidly, it’s hard for her to keep up.