== Undoing my edit == 

 To Grsz:  I fail to understand why you undid my one sentence minor edit - and doing so without discussion is inappropriate, after all the discussions which went on before.  You said "we dont really need a detailed account of the constitution".  Who is "we"?   

 A one-sentence explanation of why it's difficult to buy firearms in Mexico is highly appropriate to understanding the demand for smuggling firearms into Mexico - and not just by drug cartels.  Individual Mexicans have been smuggling firearms into Mexico for far over 100 years.  Since it's extremely difficult to buy them in Mexico, individuals still buy in the U.S. (for their own protection) and smuggle them into Mexico.   

 Frankly, I don't understand why you consider Mexidata an unreliable source - as you also previously considered any NRA publication to be unreliable.  Do you have another agenda that we should know about?  I'm presuming you are editing in Good Faith, but an explanation is in order. 

 Sincerely, (  )