Has Harman got it right?

Harriet Harman’s spotted the obvious answer to the problem of MPs employing their children, Derek Conway-style – her consultation document recommends banning the practice altogether.  Of course, any effort to slow the gravy train should be welcomed, but Harman’s proposal is only the smallest of speed bumps.  MPs would still be able to employ their spouses and partners.  And that’s before the honourable members start thinking creatively.  How long, I wonder, before they’d hit on the idea of employing each other’s kids?