When bed bugs invade the home, they contaminate all furniture and feast on their victims when they are sleeping. The itching can become so irritating that many flee to their bathtubs to escape the bed bugs' bite. Now, the tiny insects are making a comeback, and the U.S. has convened it's first ever bed bug conference to plan a "surge" against the maddening infestation. Experts attribute the rising problem to the fact that "there are few chemicals approved for use on mattresses that are effective at killing bed bugs." The last time the bugs were a major problem in the U.S was before World War II.