After the US ministry of justice has subpoenad Twitter to disclose records of and information on users who might be sympathetic to Wikileaks, Twitter decided to show full cooperation and volunteered to take this one step further. As the US intelligence agencies complain about the difficulties to quickly parse tweets in non-english languages, Twitter will - beginning February 29, 2011 - only accept tweets written in english. Programmers close to the company say they have implemented and tested the necessary parsing software and are comfortable with the speed and smoothness of operation. In a future upgrade it is intended to connect with Googles translation services so that non-english utterances can be transformed into acceptable language on the fly. Negotiations, sources say, are promising.