WASHINGTON - In a burst of activity that ended 16 months of inaction, the House ethics committee on Wednesday opened investigations of a Republican and a Democrat who are subjects of federal bribery inquiries. One lawmaker is connected to convicted lobbyist Jack Abramoff. Rep. Bob Ney (news, bio, voting record), R-Ohio, who had strong ties to Abramoff and accepted favors from him, will be investigated along with Rep. William Jefferson (news, bio, voting record), D-La. A former aide to Ney pleaded guilty last week, admitting he tried to corrupt the congressman. Two businessmen have pleaded guilty to bribing Jefferson. The...