After all, they have already shown that they cannot be trusted to handle classified information responsibly:

House Democrats are weighing extraordinary steps to secure testimony from a whistleblower whose complaint prompted their impeachment inquiry, masking his identity to prevent President Trump’s congressional allies from exposing the individual, according to three officials familiar with the deliberations.

The steps under consideration include having the whistleblower testify from a remote location and obscuring the individual’s appearance and voice, these officials said.

The efforts reflect Democrats’ deepening distrust of their GOP colleagues, whom they see as fully invested in defending a president who has attacked the whistleblower’s credibility and demanded absolute loyalty from Republicans.

………

In a further sign of the breakdown of comity, the committee majority restricted access to the visitor logbook after GOP staffers leaked names of individuals signing in for job interviews when the majority was hiring new staffers in early 2019, according to a committee aide who spoke on the condition of anonymity to freely describe the situation.

That is amazingly chicken sh%$, but typical for for Republicans.

Their goal is to out the whistle-blower, and then allow their MAGA knuckle draggers to harass them and their family as a warning to others.

^*https://www.wired.com/2017/04/devin-nunes-white-house-trump-surveillance/