[marktwain]

I recall the Clint Eastwood movie, but I do not recall the burglary. It had to be before 1968. Be nice to find a reference.

I always figured that the feds were spooked by all demonstrations against Vietnam and the home-grown communists.

[Ruy Dias de Bivar]

***It had to be before 1968. Be nice to find a reference.***

Several of the gun magazines of 1968 mentioned it on their editorial pages.

[Ruy Dias de Bivar]

Here you go! Better details than what I remembered! The news media went ballistic over this!

http://www.ar15.com/forums/t_1_5/832831_Man_Uses_20MM_Anti_Tank_Gun_To_Break_Into_NY_Bank_Vault.html

http://articles.sun-sentinel.com/1985-08-19/news/8502030703_1_westside-gang-gang-member-montreal-police/2

http://archives.chicagotribune.com/1965/11/02/page/1/article/fbi-seizes-suspect-in-cannon-burglary

Scroll down to the robbery section on this one.
http://www.guns.com/2013/05/21/the-lahti-20mm-anti-tank-gun-or-just-the-finnish-boombeast/