Add punctuation: The willdrain the most into company profit and their own pockets And the crumbsleftover will end in the third worlds leadershands how much will disappear in corruption I hardly dare to think about
A: The willdrain the most into company profit and their own pockets; And the crumbsleftover will end in the third worlds leaders'hands - how much will disappear in corruption I hardly dare to think about.

Add punctuation: Let me since I am in San Francisco speak of The genesis of my own thought
A: Let me, since I am in San Francisco, speak of The genesis of my own thought.

Add punctuation: Manureslurry may contain chemical substances such as remnants of medicine hormones mercaptanes carbondioxid ammonia methane disinfectants hydrogen sulphide etc These substances all have a toxic potential and might be spread along with the manure
A:
Manure/slurry may contain chemical substances such as, remnants of medicine, hormones, mercaptanes, carbondioxid, ammonia, methane, disinfectants, hydrogen sulphide etc. These substances all have a toxic potential and might be spread along with the manure.