Chris McGovern: Lies, damned lies and educational research. Tread warily

Kathy Gyngell: Even US liberals are doubting the wisdom of Colorado’s drugs experiment

Laura Perrins: Downton Abbey is back but Lady Mary is still a bitch

Nick Wood: The Scottish crisis is not over. It has just moved south

Laura Perrins: Salmond’s shakedown. Robbing the English blind

Alistair Thompson: Miliband and Clegg are big losers from the Scottish vote