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fayetteville, arkansas. 5:00 in los angeles. wherever you may be, we are glad you are here with us. let's start with the texas pastor, shall we? creating a bit of of a stir that that conservative values voter summit in washington. he's a rick perry supporter and encouraging republicans not to nominate mitt romney. because of romney's mormon beliefs. our jim acosta caught up with this pastor and asked him what do you say to those voters who think mormonism shouldn't be an issue? >> the southern baptist convention, which is the largest protestant denomination in the world has officiall...

And this psa test, this blood test, the results are much more mixed than that. they are sort of in four big studies around the world, only one of which showed modest improvement in survival. three showed no improvement in survival by getting that prostate-specific test. >> so, if it's true there isn't any benefit for psa testing, why should anyone get screened at age 50? >> right. and that is a very good question. let me be very clear here. this is confusing, as you warned. and not everyone agrees on that, including major organizations. what you're talking about here is specifically, american ...

Of impotence and incontinence, dr. sanjay gupta weighed in on "ac360." >> there have been sort of four big studies around the world, only one of which showed a modest improvement in survival. three really showed no improvement in survival by getting that prostate-specific test. >> so, if it's true that there isn't any benefit for psa testing, why should anyone get screened at age 50? >> right. and that's a very good question. let me be very clear here. this is confusing, as you -- as you warpened, and not everyone agrees on it, including major organizations, the american cancer society, the am...

Antigen testing, they are sensitive in picking up some sort of abnormal knit breast or prostate but not goods a specificity, meaning being able to tell what the abnormality is. that is the starting point. the difference is there is a fair amount of evidence, nine big trials around the world with regard to ma'am mogg graph neigh shows ma'am mogg graph, if i early screening does save lives and that is the outcome that people are trying to measure. with regard to prostate cancer and this psa test this blood test, the results are much more mixed than that, they are sort november four big studies a...

>> so if it's true that there isn't any benefit for psa testing, why should anyone get screened at age 50? >> right. and that is a very good question. let me be very clear here. this is confusing, as you warned. and not everyone agrees on that including major organizations. what you're talking about here specifically, american cancer society. the american urological association says that people should get screened. they recommend someone get a screening test at age 40 as a baseline and they compare that subsequently to someone and gets the screening test at age 50. but the acs, the american ca...