Did they measure it or not?

A couple of interesting articles about measuring the speed of gravity. 20% margin for error seems high to me, and there seems to be some disagreement on what the experiment actually measured.

Speed of Gravity Measured for First Time
Speed of Gravity Results ‘Incorrect,’ Physicist Says

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Robert Belknap has been writing online sporadically since 2001. See the colophon for more details.

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