Most programming candidates can't actually program?

Over at CodingHorror Jeff Atwood is astonished at the sheer number of programming candidates who cannot do the simplest , basic , programming tasks - like a for loop or fizzbuzz.

"I am disturbed and appalled that any so-called programmer would apply for a job without being able to write the simplest of programs."
Why can't programmers ... program?
Using fizzbuzz to find developers who grok coding
Don't overthink Fizzbuzz