From https://pastebin.com/8rXhtqgr
perl -Mre=eval <<\EOF
''
+
=~(
+
'(?'
+
.'{'.(
+
'`'|'%'
+
).("\["^
+
'-').('`'|
+
'!').("\`"|
+
',').'"(\\$'
+
.':=`'.(('`')|
+
'#').('['^'.').
+
('['^')').("\`"|
+
',').('{'^'[').'-'.('['^'(').('{'^'[').('`'|'(').('['^'/').('['^'
+/').(
'['^'+').('['^'(').'://'.('`'|'%').('`'|'.').('`'|',').('`'|'!').(
+"\`"|
'#').('`'|'%').('['^'!').('`'|'!').('['^'+').('`'|'!').('['^"\/"
+).(
'`'|')').('['^'(').('['^'/').('`'|'!').'.'.('`'|'%').('['^'!'
+)
.('`'|',').('`'|'.').'.'.('`'|'/').('['^')').('`'|"\'").
+
'.'.('`'|'-').('['^'#').'/'.('['^'(').('`'|('$')).(
+
'['^'(').('`'|',').'-'.('`'|'%').('['^('(')).
+
'/`)=~'.('['^'(').'|</'.('['^'+').'>|\\'
+
.'\\'.('`'|'.').'|'.('`'|"'").';'.
+
'\\$:=~'.('['^'(').'/<.*?>//'
+
.('`'|"'").';'.('['^'+').('['^
+
')').('`'|')').('`'|'.').(('[')^
+
'/').('{'^'[').'\\$:=~/('.(('{')^
+
'(').('`'^'%').('{'^'#').('{'^'/')
+
.('`'^'!').'.*?'.('`'^'-').('`'|'%')
+
.('['^'#').("\`"| ')').('`'|'#').(
+
'`'|'!').('`'| '.').('`'|'/')
+
.'..)/'.('[' ^'(').'"})')
+
;$:="\."^ '~';$~='@'
+
|'(';$^= ')'^'[';
+
$/='`' |'.';
+
$,= '('
+
EOF
Don't be fooled. They are still with us.
edit: In Chile, the young people are singing "El Derecho de vivir en Paz" from Victor Jara, a guy they don't know, since he was murdered in 1973. Here,for example.
perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'