Laura Kuennsberghas warned SNP rank and file have become frustrated overNicola Sturgeon's perceived lack of drive towards a second referendum on Scottish independence.... The BBC Political Editor described the SNP leader's timetable for a second referendum as" hazy." She went on to say the Scottish First Minister was unlikely to want to rush into a vote soon as polling was not strongly pro-independence.Ms Kuenssberg told BBC Newscast programme on Thursday:"[ Nicola Sturgeon] says, look, next ye