This is really heartening for ELLs in US schools – finally, the message is getting out there that their home language is an asset, not a deficit. Now if only policy changes could follow quickly on the heels of this acknowledgment… and hopefully other countries will also sit up and take notice of this important research, that additive bilingualism is more successful than subtractive bilingualism.

Arne Duncan Touts Advantages of Bilingualism.