This paper reexamines the Ross (1967) claim that while interrogative (+Q) CPs are islands for whextraction, as shown in 1a and 1b, declarative (-Q) CPs are not, as shown in 2a and 2b. Alexopoulou and Keller (2007) report that English-speaking subjects find extractions in the Island condition to have degraded acceptability as compared to the Non-island condition, in non-embedded and embedded con...