Random Acronym Week (RAW!) #1
AWOL = absent without leave
NASA = National Aeronautics and Space Administration
SWAT = Special Weapons and Tactics
PATRIOT Act (the US federal statute) = Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism
ESPN = Entertainment and Sports Programming Network
STEM = Science, Technology, Engineering, Mathematics
NSFW = Not Safe For Work, usually a warning about internet content inappropriate for the workplace.