guarenteed by what?

i think i did a good job criticizing the studies i found, for example, when i was doing my research i noticed that the ONLY 2 anti-cannabis studies happened to be published by the same journal. One study had been funded by the Substance Abuse and Mental Health Services Administration [SAMHSA], part of the US Department of Health and Human Services. They are very anti-cannabis, as u can see from their website. It's very likely that SAMHSA gave the researchers money in return for the researchers to support SAMHSA's claim that MJ is evil.