This mean keeping everything under wraps? Never to air your dirty laundry? Or your neighbor's for that matter.
It is haram to discuss another Muslims faults in public or even with another person. Of course people do it all the time - it's called gossip or mass media, LOL - but it's still haram. Besides the straight prohibitions of gossip, there are also hadiths to the effect that he who hides the faults of others will have his faults hidden on the day of judgment, and he who exposes other people's faults will have his exposed to the people and also on the day of j. It's even worse if you're doing it in the company of non-Muslims. You have to have husn a-dhann for the Muslims. If you talk about faults of Muslims, then you are handing ammunition to the kafireen to attack the deen of allah, and you have to be loyal to the body, etc etc etc. Even talking about walaa wa baraa with non-Muslims is not approved of by a lot of people , and you will hear them talk about it in a wishy washy way that it "just means you hate haram things."
In the face of Non-Muslims, you must affect a stance of arrogance and you defend the ummah and admit to no faults at all (except to criticise the regimes or some people for not being Muslim enough, that sort of thing). This is a sufi teaching, I'm not sure if it comes from hadiths or something else. I think it is also taught in other versions of Islam.
So for this reason, I felt very pressured to deflect on something like the MEMRI translations or extremist preachers, etc. by saying "this isn't Islam," or talking about "socio-political factors" that lead to extremism or something.