One of the two research teams at Fermilab has been on the trail of a new subatomic particle for months, and they're almost certain they've found it. But the other research team has just checked the data...and they've found nothing.
Does this contradict the post I wrote just four days ago? Honestly, it's hard to say. The CDF detector is only a couple millionths of a decimal point away from an actual, certified discovery, while the DZero detector has found absolutely nothing to back up its counterpart. This is pretty much the exact reason why two separate detectors were set up in the first place - so that one could double-check and verify the results of the other.