concurring.
A trial has not yet been held in this case. The District Court entered summary judgment against respondents, and the Court of Appeals, in reversing, did not remand the case for trial but rather directed the District Court to enter summary judgment for respondents and a permanent injunction against petitioners. As the case comes to us, therefore, we must construe the record most favorably to petitioners, and resolve all issues of fact in their favor. Because I agree that this record is insufficient to establish that there is no genuine issue of fact on the question whether any of the respondents could have reasonably believed that he or she had been detained in some meaningful way, I j oin the opinion of the Court.