Is it not also irresponsible to deliberately mislead those who elected you? Is it really true that the "vast majority of Muslims are not terrorists"? Perhaps that depends on what definition of terrorism we choose to use. For example, as you said below...
That being said, those who are not terrorists should rise up with fervor and denounce loudly and repeatedly the terrorist actions that bring shame to them all.
Question: When those who are not terrorists DO NOT do as you suggest, what does that mean? What does it mean when those who are not themselves terrorists provide emotional support for those who are by applauding or justifying or even excusing the actions of Muslim terrorists? Let's go on...
Especially vociferous in denunciation should be all Muslim clerics. It does no good to Islam when even clerics are alleged to have been involved in terrorist murders--such as those in Bali.
Have you noticed that Muslims DO denounce terrorism when they are in the minority and are concerned that the majority might be prejudiced against them because of the actions of Muslim terrorists, BUT are silent or applaud terrorism when they perceive no negative repurcussions to their own communities? For example, many Muslims did denounce the 9/11 attacks, but were silent when a Muslim gunned down some Jewish teens in NYC several years ago. That kind of action, or lack of action, makes me wonder about whether "tarring them all with the same brush" isn't somewhat justified by their conduct. No doubt, there were some who protest against all terrorist actions....however, do they protest loud enough and is anyone listening?