Article Photos: Heathrow cancels 260 flights, blames snow



A man walks his dog through a snow covered park in south London, Sunday, Jan. 20, 2013. The big freeze across Britain is here to stay, with more snow expected next week. (AP Photo/Tony Hicks)

A man walks his dog through a snow covered park in south London, Sunday, Jan. 20, 2013. The big freeze across Britain is here to stay, with more snow expected next week. (AP Photo/Tony Hicks)