strut bearing

I have been told by a mechanic that I have a strut bearing that is seizing (seized??) in my 2001 Dodge Caraven SE. I didn't ask a lot of details but I'm now thinking what cana happen if I don't get it fixed right away. Can it cause an accident by something seizing for instance????
Many thanks for any advice.....
lansdowne

destroy drive shaft or follower shaft will break dependng on where will damage motor or tranny causing ton of damage get new knuckle with bearing from junk yard for about 50 to 100 bucks