Law-and-order Republicans and liberal Democrats agree: federal prisons are overcrowded because tough sentencing laws in the 1990's went too far. Bipartisan criminal-justice reforms have emerged in the House and the Senate, but the pace is slow. Politicians can't survive the charge of being "soft on crime." Now, after decades of declining crime rates, there's a reported increase — especially in homicides. Is it real? Will it put a stop to one of the few measures lawmakers agree on — in a presidential year?