Saint Paul 3 for Thursday morning edition--also, newscast material is filed Minnesota's challenge against Big Tobacco is providing inspiration for SIMILAR challenges overseas. THIS WEEK, attorneys from Britain were in Saint Paul to meet with the state's attorneys in the case, and to observe courtroom proceedings. Minnesota Public Radio's Karen-Louise Boothe reports: Martin Day is a private attorney who's helping to build a case against Big Tobacco in the United Kingdom. He represents about 50 smokers who are suing for damages linked to what they say are the adverse health effects from smoking. Day spent time, this week meeting with the state's attorneys and observing