In 2010, the Congressional Research Service reported that the DDG-1000 cannot currently be used for BMD because the BMD role was deferred to the DDG-1000 derived CG(X) program (the DDG's had the strike role, the CG had the BMD role, but they shared both the SM3 missile, and the TSCE-I), the proposed radar of the CG(X) was much larger (22') and used much more energy and cooling capacity than the DDG-1000's. Since then, the radar system has been canceled with the CG(X) and it has been determined that a radar could be used either on DDG-51 or on DDG-1000, though it would not have the performance the navy predicts would be needed "to address the most challenging threats". Were the CG(X)'s BMD requirement adopted by the DDG-1000, the DDG-1000 would have to get the TSCE-I upgrade slated for the CG(X) to support that mission.