The U.S. Supreme Court is being asked to review a case against Maryland's requirement that applicants for concealed-carry permits provide "good and substantial reasons" to fulfill their request. Gun-rights groups that have filed a brief in the case, contending the law is unconstitutional, say it could have widespread impact. Advertisement - story continues below The court, said Second Amendment Foundation founder and Executive Vice President Alan M. Gottlieb, "could define the parameters of bearing arms outside the home, and that will impact restrictive laws in several states where carry permits or licenses are strictly regulated, which translates to nearly impossible...