Tenants with one spare bedroom have had a payment reduction of 14% and those deemed to have two or more spare a reduction of 25%.
Lawyers for the 11 cases say that, unless the families move from their homes into smaller properties, they face building up rent arrears and being forced out any way.
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Labour can make a collective decision on whether to back renewal of Britain's nuclear deterrent, the shadow defence secretary said.
The whale is reported to be alive and thrashing about in the shallow water as coastguards keep an eye on it in Mundesley, Norfolk.
The train crash in southern Germany is just the latest in a history of rail accidents in the country.