By Gregg WendorfAdvance News JournalSo many ways in which Mexico is currently suffering due to cartel-related violence, the latest of which, according to a Jan. 30 NY Post story — some Mayan ruins are no longer accessible to tourists.Pyramid sites in the southern Mexican state of Chiapas near the Guatemalan border that have survived for approximately 1,300 years, more in some cases, built by the Mayans circa 600 to 800 in the common era (A.D.), are still there, sure, but thanks to cartel-related violence, clashes between rival gangs, tourists no longer have access to them, according to the Post story.The ...