BUBBLE WRAP. Engineers Alfred Fielding and Marc Chavannes came up the idea for bubble wrap while working on a new type of textured wallpaper in 1957. By sealing two shower curtains together, they trapped a layer of bubbles.
Immigration and Customs Enforcement. Special agents at Immigration and Customs Enforcement, the largest investigative agency in Homeland Security, are classified as criminal investigators. They start at GL-7 with an annual base salary range of $33,829 to $42,055, or GL-9 with an annual base salary of $42,948 to $55,413.
The salary range for a full-time Transportation Security Officer career position is $24,432 â $36,648 per year and an additional locality pay may be added. Part-time positions are also available and are also eligible for federal health benefits at the same low cost as a full-time Transportation Security Officer.