sentences:  The NSC's proved their capability to perform naval operations during the 2012 RIMPAC exercises, where the detected and tracked missile threats and also provided naval gunfire support for troops ashore during the training exercise, demonstrating the capability of moving with other naval forces and being able to perform other defense operations.On 7 July 2009, the Government Accountability Office reported that delays in the NSC program are likely to result in "the loss of thousands of cutter operational days for conducting missions through 2017.