Patrick J Cullen News Today : Breaking News, Live Updates & Top Stories | Vimarsana

clinch the gop nomination. meantime, a showdown is brewing over the economy and the federal budget. mr. obama will host a bipartisan meeting today to discuss his economic proposal. he plans to give them a to-do list, but house speaker john boehner made very clear yesterday what he won't do. susan mcginnis is in washington with more. good morning, susan. >> reporter: good morning. it looks like we are headed for a replay of what happened last year when the nation was headed toward a debt cliff. the battle lines were drawn yesterday during a deficit summit just ahead of a meeting wit...

captioning sponsored by cbs this is the "cbs evening news" with scott pelley. >> pelley: good evening, alzehimer's disease cannot be cured butting k it be prevented. today the government announced a major study to test a prevention drug in just one family. prevention is almost impossible to measure because scientists can never know which healthy people will develop the disease. but now they have found one family in which nearly everyone develops alzehimer's diseases. more than five million americans have alzheimer's or another form of dementia. that's expected to triple over the next...

alzheimer's by the age of 50. the patients will get shots of the leading experimental drug called crenezumab to target what most scientists think is the root cause of the disease-- the buildup deep in the brain of the toxic amyloid protein, highlighted here in red. if the family members get no buildup of the protein scientists hope no alzheimer's. >> we believe it's time to launch a new era in alzheimer's research. >> reporter: dr. eric reiman is the lead researcher for the trial. what's new about this research approach? >> most but not all researchers believe the accumulation of amy...

captioning sponsored by cbs this is the "cbs evening news" with scott pelley. >> pelley: good evening, alzehimer's disease cannot be cured butting k it be prevented. today the government announced a major study to test a prevention drug in just one family. prevention is almost impossible to measure because scientists can never know which healthy people will develop the disease. but now they have found one family in which nearly everyone develops alzehimer's diseases. more than five million americans have alzheimer's or another form of dementia. that's expected to triple over the next...