Attorney General Eric Holder on Thursday defended the Mirandizing of Faisal Shahzad, the suspect in the attempted Times Square car bombing, while senators had a mixture of praise and criticism for the timing of Shahzad’s arrest. Asked during an Appropriations hearing whether the reading of Miranda rights had impeded the investigation, Holder said, “No, it did not. As we have seen in prior investigations, the giving of Miranda warnings has not deterred people from talking to us, and Mr. Shahzad is, in fact, continuing to cooperate with us.”