1. A method comprising: storing, on a storage device, input text, output text, alignment information and a confidence value, wherein the alignment information is indicative of an alignment of the output text with the input text, wherein the input text comprises text in a first language, wherein the output text comprises text in a second language produced from machine translation performed on the input text, wherein the confidence value corresponds to an indication of reliability of the output text; displaying, on a display, the input text, the output text and a display attribute corresponding to the confidence value; and indicating on the display, using the alignment information, in response to a user identifying a portion of one of the input text or the output text, the corresponding text in the other of the input text or the output text.