sharyn alfonsi, milwaukee. all 50 states and washington, d.c. are jointly investigating fraud in the mortgage market. the investigation could force mortgage companies to settle allegations that they used flawed paperwork. employees of several major lenders have admit they'd signed foreclosure documents without reading them. the defense department and homeland security are teaming up to fight cyberattacks. the plan aims to streamline response to attacks on government and private networks such as a hacking breach of google servers back in december. however, some privacy experts are concerned because the defense department's spy division, national security agency, will have a lead role. new figures show the crime rate in the country at a record low. the government says violent crime and property crime dropped last year to their lowest levels since 1973. that's when the nation began recordkeeping. and look at the last decade. violent crime is down, 39%.