Who watches the watchmen?

The Justice Department and FBI have formally acknowledged that nearly every examiner in an elite FBI forensic unit gave flawed testimony in almost all trials in which they offered evidence against criminal defendants over more than a two-decade period before 2000.

The cases include those of 32 defendants sentenced to death. Of those, 14 have been executed or died in prison, the groups said under an agreement with the government to release results after the review of the first 200 convictions.

Source: FBI admits flaws in hair analysis over decades – The Washington Post

It happened before 2000. There was other evidence in those cases. But still – false testimony from these high levels over decades happened.

It should shake you.

What is preventing us from reading a similar headline in ten more years? How could we make sure this lab has an incentive to tell the truth rather than to ally with their colleagues?