If you are a us resident who is 18+ (I think those were the requirements if there are any) and want to be a benefit to your community when a tragedy hits or a constant counter surveillance specialist against future terrorist attacks. Here is the EMI self paced training for people looking to be prepared to help their community, all courses are put together by the department of homeland security.

I haven't used the site in a few years since I worked in security so I can't answer many questions other than what can be seen on the site. Every course offers a printable certificate of completion as well. 

https://training.fema.gov/is/

Best of all is it's all FREE.

this is important ...ish check out the site i guess?