Britney Spears reportedly wants her children Sean Preston and Jayden James to be tested for drugs as she suspects her ex husband Kevin Federline smokes marijuana with them present. A source tells “Life and Style” magazine,”Britney believes Kevin’s been smoking pot in front of the kids.” She says she can smell it in the boys’ hair and on their clothes when she has her visitation with them.” The insider follows, “She’s asked the court-appointed monitor and her lawyers if they can prove the kids have been exposed to environments in which drugs have been taken."