This profession provides translations of spoken language, sign language, or written materials, The interpretation from one language to another may be simultaneous, written, or require rewriting of legal documents, scientific works, messages, or news reports. Interpreters sometimes act as escorts for tourists or officials when language is an issueEthical codes regarding confidentiality and accuracy must be followed. It may be necessary to research terms for medical, legal, or technical information. Careful listening and the utilization of electronic listening and speaking systems may also be required.