Bio diesel.....yes or no

Checked the Department of Energy website. If I am reading them correctly it says that the move to ULSD had the unintended consequence of causing "lubricity" problems and that bio-diesel blends solve this problem with blends as low as 1% bio diesel. But the bio-diesel had the unintended consequence of plugging fuel filters and other forms of damage, especially to older vehicles not designed to tolerate bio-diesel. They also admit that your vehicles warranty might not be any good if you use bio-diesel. What they do not admit is that this mess is all their fault. Idiots.