Nexus: It's all about Physical Presence. Or is it? Nexus, it's the sincerely elementary 5 minute word which the Miriamâ€"Webster compendium defines as the tie or link. At initial peek the word doesn't crop up really scary, visionary or confusing, though when used in the context of taxes it is mostly the single of the most misunderstood, misinterpreted as good as underestimated issues; creation it the really usual equates to of taxation problems. Why does this clearly non-threatening word beget such heartburn...