There is no NBC news report that says " Hillary Clinton 'Covered Up' Elite Pedophile Ring At State Department"

This is flat out fake and you can see how hard the page you link to tries to keep that information from you. These allegations were about the Diplomatic Security Service and none ever reached the office of the Secretary of State. The Allegations came out in 2013 and the were investigated and dismissed in 2014.

The allegations were investigated by the office of the Inspector General. You can read their report here.

https://oig.state.gov/system/files/esp-15-01.pdf

They basically recommend a stronger and formal "firewall" policy in cases like these. They do not say a pedophilia scandal was covered up by anyone let alone Hillary Clinton. Also the accusation was mainly about one guy. Not a ring. The OIG report doesn't even mention anything about minors or being underage because the original accusation about prostitutes in general was false.

There was never much of anything to this "pedophilia scandal." The Diplomatic Service looked into this and determined the allegations to be false two years before the allegation became public. The ambassador used to routinely walk through a local park on his way to his office and the allegations was he was seen in the park talking to drug dealers or prostitutes. He often did this without any security, because the security situation in Belgium at the time was OK and the State Department allowed this. This became an allegation he was routinely ditching his security detail to solicit prostitutes and do drugs. Another version was he would take this security detail to the park solicit prostitutes or he would reward them with underage prostitutes. This was in 2011. The allegation only became public in 2013 because someone who was not involved in the investigation stole a bunch of files and in this case was claiming the raw allegation was true and removed due to interference. It was removed because it was false.

When this hit the news the Belgian papers pointed out there were no arrests in that park for illegal activity for 4 years, the Belgian security services said they actually routinely surveilled him and never saw anything out of the ordinary. The ambassador said he talked to hundreds of people in that park and never knowingly talked with a criminal. The Belgian press rallied to his side because he was very popular in Belgium. In the end the State Department apologized to the ambassador.