It's easy to do difficult to get away with because banks have sophisticated security systems. This is why most armed robbers prefer to hit Gas Stations and Burger Kings the best they usually have is a 20 year old grainy black and white camera.
As far as the armored car goes it's broad daylight typically so your chances of getting caught are high. The gaurds are also armed and know how to use the weapons.
Here's a dumbass who did it twice.
http://privateofficernews.wordpress.com/2009/05/09/police-arrest-man-in-armored-car-robbery-shooting-www-privateofficer-com/
As far as the armored car goes it's broad daylight typically so your chances of getting caught are high. The gaurds are also armed and know how to use the weapons.
Here's a dumbass who did it twice.
http://privateofficernews.wordpress.com/2009/05/09/police-arrest-man-in-armored-car-robbery-shooting-www-privateofficer-com/