The Charleston SC News And Courier, January 5, 1967, pg 3A
Now what it really seems to be about is a crack down on used book and magazine dealers, but it is interesting that this newspaper highlights comic books with the headline. I guess it shows the low esteem comic books still held.
I don't know much about Mexican comics, but I assume that when they say American comics "translated into Spanish in Mexico City years ago", they are referring to issues like these:
Batman #1 (1º de febrero de 1954)
Pepita #1 (Marzo de 1953)
Marinos en Acción #44 ([circa 1959])
El Despertar del Mundo #48 (Mayo 31 de 1959)
Thanks to the Grand Comic-book Database for these cover scans, as usual.