What is the current state of the law on the Miranda privilege?

In Miranda v. Arizona, the United States Supreme Court held that "when an individual is taken into custody or otherwise deprived of his [or her] freedom by the authorities in any significant way and is subjected to questioning, the privilege against self-incrimination is jeopardized. Procedural safeguards must be employed to protect the privilege and unless other fully effective means are adopted to notify the person of his [or her] right of silence and to assure that the exercise of the right will be scrupulously honored, the following measures are required. He [or she] must be warned prior to any questioning that he [or she] has the right to remain silent, that anything he [or she] says can be used against him [or her] in a court of law, that he [or she] has the right to the presence of an attorney, and that if he [or she] cannot afford an attorney one will be appointed for him [or her] prior to any questioning if he [or she] so desires. Opportunity

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