according to a new c.d.c. report, parasite outbreaks for water can be dangerous. the parasite is particularly troubling due to how long it can live in treated water. to stay safe, check pools and make sure the water is properly treated. doug: good advice. jummy: sometimes we have to worry about the ocean. doug: a lot of things to worry about. wanting you don't have to worry about today is the weather. is beautiful -- it is beautiful. let's get started with a time-lapse in montgomery county. a beautiful day. a beautiful sunrise. you will enjoy outside today. the dryness of the air is reflected in the sky with the sharp sopa of the class. no rain. it will be gorgeous and comfortable. things will be changing as a warm front comes in. enjoy today. anyone right now at reagan national. 75 in manassas. we will climb to about 84. it will be warm, sunny, and comfortable. later tonight, we will see a change in the wind direction and get more humid. low-pressure across indiana will move northeast and get stronger. it will push a warm front through tomorrow. they'll give us t

abc7 news. leon: up next at "abc7 news at 4:00" -- "7 on your side" health matters alert. alarming numbers from the c.d.c. out about melanoma cases. look at how you can protect yourself from the deadly skin cancer. alison: tv producer adding another accomplishment to her long resume. details on her next big project off the leon: a circus abrow bat opening up -- acrobat opening up about the fall that nearly killed her. she remembers the exact moment and everything moved in slow motion. >> i just remember in my head just slipping. i don't remember anything else until they were doing the x-rays in the hospital. leon: maybe she ended up with nothing more than a few bruises. she said she didn't clip her safety cable correctly. she said she can't wait to get back to performing. talk about jumping back in the saddle again. alison: amazing. let's switch gears now to a "7 on your side" health matter. some really disturbing news when it comes to the deadly form of skin cancer. of course, melanoma. leon: the c.d.c. says melanoma doubled in the u.s. in the past 30 years and is on trac

scott: why the c.d.c. investigates what the pentagon says is the first of its kind prom in a ten-year long program in research against biological weapons the bad news is likely to keep coming since it takes ten days to retest anthrax samples. >> we are acting with urgency. we will do this until we get every one complete. scott: the pentagon threatened the potency was too low to affect a healthy person and that they were frozen samples, less dangerous than powder. maureen? maureen: thank you scott. as scott mentioned several of the questionable anthrax samples received at the labs in our area and they include the army edgewood chemical biological center in aberdeen. the nail surface warfare -- navy center and unnamed d.c. location. we are getting a first look at the arsenal in the car of the convicted white house jumper omar gonzalez. court documents include pictures of a dozen fire arms. thousands of rounds of ammunition and throwing tomahawks. it included the first look at the knife found in gonzalez's po

continue to work with the c.d.c. to ensure that all possible safeguards are taken to prevent exposure at the labs in question. and that any worker that might have had risk of exposure, even to these low concentrated samples, they are closely monitored. we know of no risk to the general public from these samples. to provide context, the concentration of these samples are too low to infect the average healthy individual. everyone in the department of defense takes this issue very seriously because it is a matter of public health and also the health of all of the members of our department. >> woodruff: joining me now to tell us more about what happened and the response is nancy youssef, senior national security correspondent for the daily beast. welcome back to the program. so many more samples of anthrax were sent out to these labs than was known before. why is this coming out in bits and pieces like this? >> part of it is it takes several days to determine which samples were sent out that were positive and which were