The husband of an acclaimed dissident Cuban blogger was punched and shouted down by a pro-government mob Friday after he challenged the presumed state agents who earlier roughed up his wife to a street corner debate.As he promised earlier on his blog, Reinaldo Escobar went to the intersection of Havana's 23rd and G avenues for the proposed discussion. On Thursday, Escobar's wife posted President Barack Obama's responses to her written questions on Cuba-U.S. relations on her "Generacion Y" blog.