A conservative activist who made undercover videos of the liberal community-organizing group ACORN was one of four men charged Tuesday with attempting to illegally access and manipulate the phone system in a district office of U.S. Sen. Mary Landrieu of Louisiana.
Read more: 4 charged in U.S. Senate office infiltration in New Orleans (http://rss.cnn.com/~r/rss/cnn_latest/~3/cbXlXVBgTCo/index.html)