The USA made touring cannondales had a lifetime warranty. Mine cracked at the classic spot, dropout drive side chain stay interfac while on tour. Had it happened at home i probably would not have bothered to ask about warranty on a 10yo bike. Because it happened 3000 mi into a tour and caused some serious annoyance I gave it a whirl.
Replaced with a NOS USA frame.

Thanks, Cannondale

Had it been steel someone could have repaired it with a torch right :-)