There is a need for rationality, including the acknowledgement of real and legitimate fears AND the avoidance of hysteria over those who don't agree that most control would do anything to mitigate this, or other, public attacks. And what is NOT rational is the anti-gun hysterics of H Clinton and others who repeatedly scream irrelevant nonsense.
Here are the facts and lessons yet to be learned:
1) One shooter was a native born, the other was from Qatar with roots in Pakistan. Both shooter's family roots are from the mid-east and both were devout Muslims.
LESSON: Therefore, it is likely that the continued immigration of Muslims (especially from the Middle East) increases the likelihood of domestic terrorism. Not that this is news (ask France and Belgium, etc.).
There is no support presented for this other than the two are muslim believers. Extending from the, not mentioned, immigration of one Muslim from Pakistan (not the middle east at all) increases the likelihood of anything other than they bore a child in the US. All of that wasn't presented, but, which if it were still doesn't rise to the level of evidence so remains only phenomenal notation they might increase the number of people born in the US. As for the mention of European events the perps were for the most part native born citizens which doesn't support importation of terrorist Muslim thinking.
Nope...
FACT: Their heritage was directly (or indirectly) from the greater middle east. The were devout Muslim believers. And as is becoming increasingly acknowledged, the wife (Tashfee Malik) pledged her allegiance (called a "bayat") to ISIS leader Abu Bakr al-Baghdadi and was likely the couple's radicalizing element. (NYT "In the days leading up to the shooting, the couple took several steps to delete their electronic information, in an apparent effort to cover their tracks, officials said. Those efforts have led authorities to believe that the shooting was premeditated."). ...
FACT: This is a template seen before in radicalized Islam. These Islam fueled terrorists are usually the progeny of Greater Middle-East Muslims, and either are from immigrant or the native second generation Muslim immigrant stock. The Islamic motivated multiple murder attacks in Ft. Hood, Chattanooga, Boston, and San Bernardino are just the most notorious of recent attacks. Less well known are the routine acts of domestic torture and murder in the name of Allah. Domestic stories such as: A Muslim man shoots his daughter because she is lesbian and offends the Koran. A Muslim targets and beheads two Coptic Christian immigrants. A 19 year college student is shot "in revenge" for Muslim deaths overseas. A Muslim guns down his Christian father in Church, while praising Allah. A Muslim father kills an American because the American converted his daughter to Christianity. A Muslim strangles his 25 year old daughter in an honor killing...etc. etc...etc...
LESSON: As the Muslim population continues to increase in the United States the pool from which the radicals recruit or join grows larger. And as the pool grows larger, the number of attacks will increase. As between 5 - 25% of Muslims in America already believe that violence in defense of Islam is justified, what else would you expect?
So more Muslim immigration means that, sooner or later, more Americans will eventually die. Unless there is some important benefit to importing Muslims, such immigration should end (and it would be wise to deport non-citizens as well).
...Since the above conjecture isn't really argument, there is no lesson. Certainly there is no lesson about whether improved monitoring of anything including the Muslim community will (yes, maxparrish weasel worded with 'may', but in context, it carries the meaning of doing) or the probability of detention of would be terrorists prior to striking.
FACT: Previous attacks were largely or totally unanticipated and from came from inadequately monitored Muslim communities.
LESSON: Increased monitoring may improve detection and prevention of such acts, and therefore should be pursued.
There is no compelling reason not to try increased surveillance, unless you are of a mind to protect terrorists from premature exposure. Is that your intention?
Grade: Two fails. Your presentation is neither rational nor is it empirically based.
I'm going into your post to show you why. (see bolded above)
Re evidence: gun control reduces rates of mass killings.
How a Conservative-Led Australia Ended Mass Killings http://I'm a advocate of common sen... does impact the occurrence of mass shootings
Irrelevant. Australian styled gun control, which included a form of confiscation, is not what Americans normally consider "common-sense" gun control. We are speaking of those proposals that have been offered in the American context.
Moreover, we are not speaking of mass killings in general. We are speaking of the kind of event that happened in San Bernardino, which Clinton (etc.) exploited with an irrelevant fit.
You, like so many others, have failed to show that the controls being touted would have had an effect.
Re correction: We are at war with extremists and loonies motivated by loonies. The loonies we are focusing on at the moment is Daesh and their internetwork of hate and motivation for those looking for ways to 'get even' or otherwise exact vengeance upon something or someone.
Oh yes, the war wherein Obama (et. al.) thinks that hashtags and acronym changes (along with climate change conferences) is "fighting back"...LOL.
The remainder of your post is largely incoherent.