Saw this on Wikipedia today, some interesting history about a failed Nazi plot to sabotage Horseshoe curve and other important assets in the USA during World War II.
http://en.wikipedia.org/wiki/Operation_Pastorius
http://en.wikipedia.org/wiki/H..._Curve_(Pennsylvania)
"During World War II, Horseshoe Curve was used to transport troops and material for the Allied war effort, and was placed under armed guard.[22] The military intelligence arm of Nazi Germany, the Abwehr, plotted to sabotage important industrial assets in the United States in a project code-named Operation Pastorius."
"Their mission was to stage sabotage attacks on American economic targets: hydroelectric plants at Niagara Falls; the Aluminum Company of America's plants in Illinois, Tennessee, and New York; locks on the Ohio River near Louisville, Kentucky; the Horseshoe Curve, a crucial railroad pass near Altoona, Pennsylvania, as well as the Pennsylvania Railroad's repair shops at Altoona;[1] a cryolite plant in Philadelphia; **** Gate Bridge in New York; and Pennsylvania Station in Newark, New Jersey."
I guess we aren't allowed to use the real name of "Hades" Gate Bridge - it automatically gets the asterisk treatment !