A Virginia legislative subcommittee is set to consider a proposal to arm public school employees. The bill would require school boards to designate one person in every school who would be authorized to carry a concealed handgun on school property. A historically pro-gun House Militia, Police and Public Safety subcommittee is scheduled to consider the proposal late this afternoon. Also on the agenda are several gun control bills. Among them are measures to prohibit the sale of assault rifles and high-capacity ammunition clips, expand background checks for gun buyers and tighten the requirements for obtaining a concealed weapons permit.