White powder could be many things, for example
1. Talc. Requiring extra work to clean up, but also be dealt with in the next M&M meeting, and requiring copious paperwork
2. Anthrax. Involving strong antibiotics, and weeks of monitoring, and a massive cleanup, and a truckload of paperwork
3. Ricin. Involving probable death, massive cleanup, Even more paperwork
The individual, family, friends and colleagues would be traumatized and their lives and work disrupted
/3